Edit custom issue tracker docs

doc/user/project/integrations/custom_issue_tracker.md

@@ -4,31 +4,40 @@ group: Integrations
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
 ---
 
-# Custom issue tracker service **(FREE)**
+# Custom issue tracker **(FREE)**
 
-Use a custom issue tracker that is not in the integration list.
+You can integrate an [external issue tracker](../../../integration/external-issue-tracker.md)
+with GitLab. If your preferred issue tracker is not listed in the
+[integrations list](../../../integration/external-issue-tracker.md#integration),
+you can enable a custom issue tracker.
+
+After you enable the custom issue tracker, a link to the issue tracker displays
+on the left sidebar in your project.
+
+![Custom issue tracker link](img/custom_issue_tracker_v14_5.png)
+
+## Enable a custom issue tracker
 
 To enable a custom issue tracker in a project:
 
-1. Go to the [Integrations page](overview.md#accessing-integrations).
+1. On the top bar, select **Menu > Projects** and find your project.
+1. On the left sidebar, select **Settings > Integrations**.
 1. Select **Custom issue tracker**.
 1. Select the checkbox under **Enable integration**.
 1. Fill in the required fields:
 
    - **Project URL**: The URL to view all the issues in the custom issue tracker.
    - **Issue URL**: The URL to view an issue in the custom issue tracker. The URL must contain `:id`.
-   GitLab replaces `:id` with the issue number (for example,
-   `https://customissuetracker.com/project-name/:id`, which becomes `https://customissuetracker.com/project-name/123`).
+     GitLab replaces `:id` with the issue number (for example,
+     `https://customissuetracker.com/project-name/:id`, which becomes
+     `https://customissuetracker.com/project-name/123`).
    - **New issue URL**:
      <!-- The line below was originally added in January 2018: https://gitlab.com/gitlab-org/gitlab/-/commit/778b231f3a5dd42ebe195d4719a26bf675093350 -->
-     **This URL is not used and removal is planned in a future release.**
-     Enter any URL here.
-     For more information, see [issue 327503](https://gitlab.com/gitlab-org/gitlab/-/issues/327503).
-
-1. Select **Save changes** or optionally select **Test settings**.
+     **This URL is not used and an [issue exists](https://gitlab.com/gitlab-org/gitlab/-/issues/327503) to remove it.**
+     Enter any URL.
 
-After you configure and enable the custom issue tracker service, a link appears on the GitLab
-project pages. This link takes you to the custom issue tracker.
+1. Optional. Select **Test settings**.
+1. Select **Save changes**.
 
 ## Reference issues in a custom issue tracker