Revert "Remove "introduced in" 8.x and earlier"

This reverts commit 020af2c3b331e6f8815ba67df853fa315a0fd68d.

doc/api/epics.md

@@ -12,7 +12,7 @@ The [epic issues API](epic_issues.md) allows you to interact with issues associa
 
 ## Milestone dates integration
 
-> [Introduced][ee-6448] in GitLab 11.3.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/6448) in GitLab 11.3.
 
 Since start date and due date can be dynamically sourced from related issue milestones, when user has edit permission,
 additional fields will be shown. These include two boolean fields `start_date_is_fixed` and `due_date_is_fixed`,
@@ -224,7 +224,7 @@ Example response:
 Creates a new epic.
 
 NOTE: **Note:**
-Starting with GitLab [11.3][ee-6448], `start_date` and `end_date` should no longer be assigned
+Starting with GitLab [11.3](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/6448), `start_date` and `end_date` should no longer be assigned
 directly, as they now represent composite values. You can configure it via the `*_is_fixed` and
 `*_fixed` fields instead.
 
@@ -298,7 +298,7 @@ Example response:
 Updates an epic.
 
 NOTE: **Note:**
-Starting with GitLab [11.3][ee-6448], `start_date` and `end_date` should no longer be assigned
+Starting with GitLab [11.3](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/6448), `start_date` and `end_date` should no longer be assigned
 directly, as they now represent composite values. You can configure it via the `*_is_fixed` and
 `*_fixed` fields instead.
 
@@ -460,5 +460,3 @@ Example response:
   "created_at": "2016-07-01T11:09:13.992Z"
 }
 ```
-
-[ee-6448]: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/6448

doc/api/group_level_variables.md

 # Group-level Variables API
 
-> [Introduced][ce-34519] in GitLab 9.5
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/34519) in GitLab 9.5
 
 ## List group variables
 
@@ -142,5 +142,3 @@ DELETE /groups/:id/variables/:key
 ```shell
 curl --request DELETE --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/groups/1/variables/VARIABLE_1"
 ```
-
-[ce-34519]: https://gitlab.com/gitlab-org/gitlab-foss/issues/34519

doc/api/project_snippets.md

@@ -183,7 +183,7 @@ curl https://gitlab.com/api/v4/projects/:id/snippets/:snippet_id/raw \
 
 ## Get user agent details
 
-> [Introduced][ce-29508] in GitLab 9.4.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/29508) in GitLab 9.4.
 
 Available only for admins.
 
@@ -211,5 +211,3 @@ Example response:
   "akismet_submitted": false
 }
 ```
-
-[ce-29508]: https://gitlab.com/gitlab-org/gitlab-foss/issues/29508

doc/api/todos.md

 # Todos API
 
-> [Introduced][ce-3188] in GitLab 8.10.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/3188) in GitLab 8.10.
 
 ## Get a list of todos
 
@@ -287,5 +287,3 @@ POST /todos/mark_as_done
 ```shell
 curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/todos/mark_as_done
 ```
-
-[ce-3188]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/3188

doc/user/discussions/index.md

@@ -15,14 +15,14 @@ There are standard comments, and you also have the option to create a comment
 in the form of a thread. A comment can also be [turned into a thread](#start-a-thread-by-replying-to-a-standard-comment)
 when it receives a reply.
 
-The comment area supports [Markdown] and [quick actions]. You can edit your own
-comment at any time, and anyone with [Maintainer access level][permissions] or
+The comment area supports [Markdown](../markdown.md) and [quick actions](../project/quick_actions.md). You can edit your own
+comment at any time, and anyone with [Maintainer access level](../permissions.md) or
 higher can also edit a comment made by someone else.
 
 You can also reply to a comment notification email to reply to the comment if
 [Reply by email] is configured for your GitLab instance. Replying to a standard comment
 creates another standard comment. Replying to a threaded comment creates a reply in the thread. Email replies support
-[Markdown] and [quick actions], just as if you replied from the web.
+[Markdown](../markdown.md) and [quick actions](../project/quick_actions.md), just as if you replied from the web.
 
 NOTE: **Note:**
 There is a limit of 5,000 comments for every object, for example: issue, epic, and merge request.
@@ -48,7 +48,7 @@ to address feedback and lets you hide threads that are no longer relevant.
 
 ### Commit threads in the context of a merge request
 
-> [Introduced][ce-31847] in GitLab 10.3.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/31847) in GitLab 10.3.
 
 For reviewers with commit-based workflow, it may be useful to add threads to
 specific commit diffs in the context of a merge request. These threads will
@@ -112,7 +112,7 @@ Alternatively, you can mark each comment as resolved individually.
 
 ### Move all unresolved threads in a merge request to an issue
 
-> [Introduced][ce-8266] in GitLab 9.1
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/8266) in GitLab 9.1
 
 To continue all open threads from a merge request in a new issue, click the
 **Resolve all threads in new issue** button.
@@ -156,7 +156,7 @@ add a note to the merge request thread referencing the new issue.
 
 ### Only allow merge requests to be merged if all threads are resolved
 
-> [Introduced][ce-7125] in GitLab 8.14.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7125) in GitLab 8.14.
 
 You can prevent merge requests from being merged until all threads are
 resolved.
@@ -174,7 +174,7 @@ are resolved.
 
 ### Automatically resolve merge request diff threads when they become outdated
 
-> [Introduced][ce-14053] in GitLab 10.0.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14053) in GitLab 10.0.
 
 You can automatically resolve merge request diff threads on lines modified
 with a new push.
@@ -200,7 +200,7 @@ force push.
 
 ## Threaded discussions
 
-> [Introduced][ce-7527] in GitLab 9.1.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7527) in GitLab 9.1.
 
 While resolvable threads are only available to merge request diffs,
 threads can also be added without a diff. You can start a specific
@@ -220,7 +220,7 @@ comments in greater detail.
 
 ## Image threads
 
-> [Introduced][ce-14061] in GitLab 10.1.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14061) in GitLab 10.1.
 
 Sometimes a thread is revolved around an image. With image threads,
 you can easily target a specific coordinate of an image and start a thread
@@ -257,7 +257,7 @@ load and will have a corresponding badge counter to match the counter on the ima
 
 ## Lock discussions
 
-> [Introduced][ce-14531] in GitLab 10.1.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14531) in GitLab 10.1.
 
 For large projects with many contributors, it may be useful to stop threads
 in issues or merge requests in these scenarios:
@@ -313,7 +313,7 @@ All comments that are part of a review show two buttons:
 
 ![A comment that is part of a review](img/pending_review_comment.png)
 
-You can use [quick actions] inside review comments. The comment will show the actions that will be performed once published.
+You can use [quick actions](../project/quick_actions.md) inside review comments. The comment will show the actions that will be performed once published.
 
 ![A review comment with quick actions](img/review_comment_quickactions.png)
 
@@ -500,20 +500,3 @@ to the original comment, so a note about when it was last edited will appear und
 
 This feature only exists for Issues, Merge requests, and Epics. Commits, Snippets and Merge request diff threads are
 not supported yet.
-
-[ce-7125]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7125
-[ce-7527]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7527
-[ce-7180]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7180
-[ce-8266]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/8266
-[ce-14053]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14053
-[ce-14061]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14061
-[ce-14531]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14531
-[ce-31847]: https://gitlab.com/gitlab-org/gitlab-foss/issues/31847
-[resolve-discussion-button]: img/resolve_discussion_button.png
-[resolve-comment-button]: img/resolve_comment_button.png
-[discussion-view]: img/discussion_view.png
-[discussions-resolved]: img/discussions_resolved.png
-[markdown]: ../markdown.md
-[quick actions]: ../project/quick_actions.md
-[permissions]: ../permissions.md
-[Reply by email]: ../../administration/reply_by_email.md

doc/user/project/badges.md

@@ -4,8 +4,9 @@
 
 Badges are a unified way to present condensed pieces of information about your
 projects. They consist of a small image and additionally a URL that the image
-points to. Examples for badges can be the [pipeline status], [test coverage],
-or ways to contact the project maintainers.
+points to. Examples for badges can be the [pipeline status](../../ci/pipelines/settings.md#pipeline-status-badge),
+[test coverage](../../ci/pipelines/settings.md#test-coverage-report-badge), or ways to contact the
+project maintainers.
 
 ![Badges on Project overview page](img/project_overview_badges.png)
 
@@ -73,6 +74,3 @@ using these placeholders if the information is sensitive.
 You can also configure badges via the GitLab API. As in the settings, there is
 a distinction between endpoints for badges on the
 [project level](../../api/project_badges.md) and [group level](../../api/group_badges.md).
-
-[pipeline status]: ../../ci/pipelines/settings.md#pipeline-status-badge
-[test coverage]: ../../ci/pipelines/settings.md#test-coverage-report-badge

doc/user/project/description_templates.md

 # Description templates
 
->[Introduced][ce-4981] in GitLab 8.11.
+>[Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/4981) in GitLab 8.11.
 
 We all know that a properly submitted issue is more likely to be addressed in
 a timely manner by the developers of a project.
@@ -27,12 +27,12 @@ templates of the default branch will be taken into account.
 - Add a template to be used in every issue for a specific project,
   giving instructions and guidelines, requiring for information specific to that subject.
   For example, if you have a project for tracking new blog posts, you can require the
-  title, outlines, author name, author social media information, etc.
+  title, outlines, author name, author social media information, and so on.
 - Following the previous example, you can make a template for every MR submitted
   with a new blog post, requiring information about the post date, frontmatter data,
-  images guidelines, link to the related issue, reviewer name, etc.
+  images guidelines, link to the related issue, reviewer name, and so on.
 - You can also create issues and merge request templates for different
-  stages of your workflow, e.g., feature proposal, feature improvement, bug report, etc.
+  stages of your workflow, for example, feature proposal, feature improvement, or a bug report.
 
 ## Creating issue templates
 
@@ -57,25 +57,25 @@ changes you made after picking the template and return it to its initial status.
 
 ## Setting a default template for merge requests and issues  **(STARTER)**
 
-> **Notes:**
->
-> - This feature was introduced before [description templates](#overview) and is
->   available in [GitLab Starter][products]. It can be enabled
->   in the project's settings.
-> - Templates for issues were [introduced][ee-28] in GitLab EE 8.1.
-> - Templates for merge requests were [introduced][ee-7478ece] in GitLab EE 6.9.
+> - This feature was introduced before [description templates](#overview) and is available in [GitLab Starter](https://about.gitlab.com/pricing/). It can be enabled in the project's settings.
+> - Templates for issues were [introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/28) in GitLab EE 8.1.
+> - Templates for merge requests were [introduced](https://gitlab.com/gitlab-org/gitlab/commit/7478ece8b48e80782b5465b96c79f85cc91d391b) in GitLab EE 6.9.
 
 The visibility of issues and/or merge requests should be set to either "Everyone
 with access" or "Only Project Members" in your project's **Settings / Visibility, project features, permissions** section, otherwise the
 template text areas won't show. This is the default behavior so in most cases
 you should be fine.
 
-Go to your project's **Settings** and under the **Merge requests** header, click *Expand* and fill in the "Default description template
-for merge requests" text area. Under the **Default issue template**, click *Expand* and fill in "Default description template for issues" text area. Since GitLab merge request and issues
- support [Markdown](../markdown.md), you can use special markup like
-headings, lists, etc.
+1. Go to your project's **Settings**.
+1. Click **Expand** under the **Merge requests** header.
+1. Fill in the **Default description template for merge requests** text area.
+1. Click **Expand** under **Default issue template**.
+1. Fill in the **Default description template for issues** text area.
+   Since GitLab merge request and issues support [Markdown](../markdown.md), you can use it to format
+   headings, lists, and so on.
 
 ![Default merge request description templates](img/description_templates_merge_request_settings.png)
+
 ![Default issue description templates](img/description_templates_issue_settings.png)
 
 After you add the description, hit **Save changes** for the settings to take
@@ -84,12 +84,16 @@ pre-filled with the text you entered in the template(s).
 
 ## Description template example
 
-We make use of Description Templates for Issues and Merge Requests within the GitLab Community Edition project. Please refer to the [`.gitlab` folder][gitlab-templates] for some examples.
+We make use of Description Templates for Issues and Merge Requests within the GitLab Community
+Edition project. Please refer to the [`.gitlab` folder](https://gitlab.com/gitlab-org/gitlab/tree/master/.gitlab)
+for some examples.
 
-> **Tip:**
-It is possible to use [quick actions](quick_actions.md) within description templates to quickly add labels, assignees, and milestones. The quick actions will only be executed if the user submitting the Issue or Merge Request has the permissions to perform the relevant actions.
+TIP: **Tip:**
+It's possible to use [quick actions](quick_actions.md) within description templates to quickly add
+labels, assignees, and milestones. The quick actions will only be executed if the user submitting
+the issue or merge request has the permissions to perform the relevant actions.
 
-Here is an example for a Bug report template:
+Here is an example of a Bug report template:
 
 ```plaintext
 Summary
@@ -133,9 +137,3 @@ Possible fixes
 /cc @project-manager
 /assign @qa-tester
 ```
-
-[ce-4981]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/4981
-[gitlab-templates]: https://gitlab.com/gitlab-org/gitlab/tree/master/.gitlab
-[ee-28]: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/28 "Merge Request for adding issues template"
-[ee-7478ece]: https://gitlab.com/gitlab-org/gitlab/commit/7478ece8b48e80782b5465b96c79f85cc91d391b "Commit that introduced merge requests templates"
-[products]: https://about.gitlab.com/pricing/

doc/user/project/issue_board.md

 # Issue Boards
 
-> [Introduced][ce-5554] in [GitLab 8.11](https://about.gitlab.com/releases/2016/08/22/gitlab-8-11-released/#issue-board).
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/5554) in [GitLab 8.11](https://about.gitlab.com/releases/2016/08/22/gitlab-8-11-released/#issue-board).
 
 ## Overview
 
 The GitLab Issue Board is a software project management tool used to plan,
 organize, and visualize a workflow for a feature or product release.
-It can be used as a [Kanban] or a [Scrum] board.
+It can be used as a [Kanban](https://en.wikipedia.org/wiki/Kanban_(development)) or a
+[Scrum](https://en.wikipedia.org/wiki/Scrum_(software_development)) board.
 
 It provides perfect pairing between issue tracking and project management,
 keeping everything in the same place, so that you don't need to jump
@@ -191,8 +192,10 @@ This allows you to create unique boards according to your team's need.
 
 ![Create scoped board](img/issue_board_creation.png)
 
-You can define the scope of your board when creating it or by clicking on the "Edit board" button. Once a milestone, assignee or weight is assigned to an Issue Board, you will no longer be able to filter
-through these in the search bar. In order to do that, you need to remove the desired scope (e.g. milestone, assignee or weight) from the Issue Board.
+You can define the scope of your board when creating it or by clicking on the "Edit board" button.
+Once a milestone, assignee or weight is assigned to an Issue Board, you will no longer be able to
+filter through these in the search bar. In order to do that, you need to remove the desired scope
+(for example, milestone, assignee, or weight) from the Issue Board.
 
 ![Edit board configuration](img/issue_board_edit_button.png)
 
@@ -381,21 +384,21 @@ that order simply by dragging and dropping the issues. The changed order will be
 to the system so that anybody who visits the same board later will see the reordering,
 with some exceptions.
 
-The first time a given issue appears in any board (i.e. the first time a user
-loads a board containing that issue), it will be ordered with
+The first time a given issue appears in any board (that is, the first time a user
+loads a board containing that issue), it is ordered with
 respect to other issues in that list according to [Priority order](labels.md#label-priority).
 
-At that point, that issue will be assigned a relative order value by the system
+At that point, that issue is assigned a relative order value by the system
 representing its relative order with respect to the other issues in the list. Any time
-you drag-and-drop reorder that issue, its relative order value will change accordingly.
+you drag-and-drop reorder that issue, its relative order value changes accordingly.
 
-Also, any time that issue appears in any board when it is loaded by a user,
-the updated relative order value will be used for the ordering. (It's only the first
+Also, any time that issue appears in any board when it's loaded by a user,
+the updated relative order value is used for the ordering. (It's only the first
 time an issue appears that it takes from the Priority order mentioned above.) This means that
 if issue `A` is drag-and-drop reordered to be above issue `B` by any user in
 a given board inside your GitLab instance, any time those two issues are subsequently
-loaded in any board in the same instance (could be a different project board or a different group board, for example),
-that ordering will be maintained.
+loaded in any board in the same instance (could be a different project board or a different group
+board, for example), that ordering is maintained.
 
 This ordering also affects [issue lists](issues/sorting_issue_lists.md).
 Changing the order in an issue board changes the ordering in an issue list,
@@ -413,7 +416,7 @@ You can filter by author, assignee, milestone, and label.
 
 By reordering your lists, you can create workflows. As lists in Issue Boards are
 based on labels, it works out of the box with your existing issues. So if you've
-already labeled things with 'Backend' and 'Frontend', the issue will appear in
+already labeled things with 'Backend' and 'Frontend', the issue appears in
 the lists as you create them. In addition, this means you can easily move
 something between lists by changing a label.
 
@@ -464,7 +467,7 @@ You can select multiple issue cards, then drag the group to another position wit
 To select and move multiple cards:
 
 1. Select each card with <kbd>Ctrl</kbd>+`Click` on Windows or Linux, or <kbd>Cmd</kbd>+`Click` on MacOS.
-1. Drag one of the selected cards to another position or list and all selected cards will be moved.
+1. Drag one of the selected cards to another position or list and all selected cards are moved.
 
 ![Multi-select Issue Cards](img/issue_boards_multi_select_v12_4.png)
 
@@ -476,13 +479,9 @@ A few things to remember:
   and adds the label from the list it goes to.
 - An issue can exist in multiple lists if it has more than one label.
 - Lists are populated with issues automatically if the issues are labeled.
-- Clicking on the issue title inside a card will take you to that issue.
-- Clicking on a label inside a card will quickly filter the entire Issue Board
+- Clicking on the issue title inside a card takes you to that issue.
+- Clicking on a label inside a card quickly filters the entire Issue Board
   and show only the issues from all lists that have that label.
 - For performance and visibility reasons, each list shows the first 20 issues
-  by default. If you have more than 20 issues start scrolling down and the next
-  20 will appear.
-
-[ce-5554]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/5554
-[scrum]: https://en.wikipedia.org/wiki/Scrum_(software_development)
-[kanban]: https://en.wikipedia.org/wiki/Kanban_(development)
+  by default. If you have more than 20 issues, start scrolling down and the next
+  20 appears.

doc/user/todos.md

@@ -4,7 +4,7 @@ disqus_identifier: 'https://docs.gitlab.com/ee/workflow/todos.html'
 
 # GitLab To-Do List
 
-> [Introduced][ce-2817] in GitLab 8.5.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/2817) in GitLab 8.5.
 
 When you log into GitLab, you normally want to see where you should spend your
 time, take some action, or know what you need to keep an eye on without
@@ -29,7 +29,7 @@ displays on the To-Do List.
 
 ## What triggers a To Do
 
-A To Do displays on your To-Do List when:
+A To Do appears on your To-Do List when:
 
 - An issue or merge request is assigned to you
 - You are `@mentioned` in the description or comment of an:
@@ -46,11 +46,13 @@ A To Do displays on your To-Do List when:
 To-do triggers are not affected by [GitLab Notification Email settings](profile/notifications.md).
 
 NOTE: **Note:**
-When a user no longer has access to a resource related to a To Do (like an issue, merge request, project, or group) the related To-Do items are deleted within the next hour for security reasons. The delete is delayed to prevent data loss, in case the user's access was revoked by mistake.
+When a user no longer has access to a resource related to a To Do (like an issue, merge request,
+project, or group) the related To-Do items are deleted within the next hour for security reasons.
+The delete is delayed to prevent data loss, in case the user's access was revoked by mistake.
 
 ### Directly addressing a To Do
 
-> [Introduced][ce-7926] in GitLab 9.0.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7926) in GitLab 9.0.
 
 If you are mentioned at the start of a line, the To Do you receive will be listed
 as 'directly addressed'. For example, in this comment:
@@ -136,7 +138,12 @@ There are four kinds of filters you can use on your To-Do List.
 | Type    | Filter by issue, merge request, or epic **(ULTIMATE)** |
 | Action  | Filter by the action that triggered the To Do |
 
-You can also filter by more than one of these at the same time. The possible Actions are `Any Action`, `Assigned`, `Mentioned`, `Added`, `Pipelines`, and `Directly Addressed`, [as described above](#what-triggers-a-to-do).
+You can also filter by more than one of these at the same time. The possible Actions are
+[described above](#what-triggers-a-to-do) and include:
 
-[ce-2817]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/2817
-[ce-7926]: https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/7926
+- Any Action
+- Assigned
+- Mentioned
+- Added
+- Pipelines
+- Directly Addressed