Update quick actions table and combine with epics

Also fix links to renamed headers and moved content

doc/user/group/epics/index.md

@@ -4,7 +4,7 @@ type: reference, howto
 
 # Epics **(ULTIMATE)**
 
-> Introduced in [GitLab Ultimate][ee] 10.2.
+> Introduced in [GitLab Ultimate](https://about.gitlab.com/pricing/) 10.2.
 
 Epics let you manage your portfolio of projects more efficiently and with less
 effort by tracking groups of issues that share a theme, across projects and
@@ -116,7 +116,7 @@ To apply labels across multiple epics:
 ## Deleting an epic
 
 NOTE: **Note:**
-To delete an epic, you need to be an [Owner][permissions] of a group/subgroup.
+To delete an epic, you need to be an [Owner](../../permissions.md#group-members-permissions) of a group/subgroup.
 
 When inside a single epic view, click the **Delete** button to delete the epic.
 A modal will pop-up to confirm your action.
@@ -154,7 +154,7 @@ link in the issue sidebar.
 
 If you have [permissions](../../permissions.md) to close an issue and create an
 epic in the parent group, you can promote an issue to an epic with the `/promote`
-[quick action](../../project/quick_actions.md#quick-actions-for-epics-ultimate).
+[quick action](../../project/quick_actions.md#quick-actions-for-issues-merge-requests-and-epics).
 Only issues from projects that are in groups can be promoted.
 
 When the quick action is executed:
@@ -171,7 +171,7 @@ The following issue metadata will be copied to the epic:
 
 ## Searching for an epic from epics list page
 
-> Introduced in [GitLab Ultimate][ee] 10.5.
+> Introduced in [GitLab Ultimate](https://about.gitlab.com/pricing/) 10.5.
 
 You can search for an epic from the list of epics using filtered search bar (similar to
 that of Issues and Merge requests) based on following parameters:
@@ -210,10 +210,7 @@ Note that for a given group, the visibility of all projects must be the same as
 the group, or less restrictive. That means if you have access to a group's epic,
 then you already have access to its projects' issues.
 
-You may also consult the [group permissions table][permissions].
-
-[ee]: https://about.gitlab.com/pricing/
-[permissions]: ../../permissions.md#group-members-permissions
+You may also consult the [group permissions table](../../permissions.md#group-members-permissions).
 
 ## Thread
 

doc/user/project/merge_requests/index.md

@@ -218,7 +218,7 @@ Similarly, assignees are removed by deselecting them from the same dropdown menu
 It's also possible to manage multiple assignees:
 
 - When creating a merge request.
-- Using [quick actions](../quick_actions.md#quick-actions-for-issues-and-merge-requests).
+- Using [quick actions](../quick_actions.md#quick-actions-for-issues-merge-requests-and-epics).
 
 ## Resolve conflicts
 

doc/user/project/merge_requests/work_in_progress_merge_requests.md

@@ -18,7 +18,7 @@ There are several ways to flag a merge request as a Work In Progress:
 - Add `[WIP]` or `WIP:` to the start of the merge request's title. Clicking on
   **Start the title with WIP:**, under the title box, when editing the merge request's
   description will have the same effect.
-- Add the `/wip` [quick action](../quick_actions.md#quick-actions-for-issues-and-merge-requests)
+- Add the `/wip` [quick action](../quick_actions.md#quick-actions-for-issues-merge-requests-and-epics)
   in a comment in the merge request. This is a toggle, and can be repeated
   to change the status back. Note that any other text in the comment will be discarded.
 - Add "wip" or "WIP" to the start of a commit message targeting the merge request's
@@ -33,7 +33,7 @@ Similar to above, when a Merge Request is ready to be merged, you can remove the
 - Remove `[WIP]` or `WIP:` from the start of the merge request's title. Clicking on
   **Remove the WIP: prefix from the title**, under the title box, when editing the merge
   request's description, will have the same effect.
-- Add the `/wip` [quick action](../quick_actions.md#quick-actions-for-issues-and-merge-requests)
+- Add the `/wip` [quick action](../quick_actions.md#quick-actions-for-issues-merge-requests-and-epics)
   in a comment in the merge request. This is a toggle, and can be repeated
   to change the status back. Note that any other text in the comment will be discarded.
 - Click on the **Resolve WIP status** button near the bottom of the merge request description,