Merge branch 'docs-justin-requirementstopic' into 'master'

Adding requirements management to plan docs

See merge request gitlab-org/gitlab!30237

doc/README.md

@@ -118,6 +118,7 @@ The following documentation relates to the DevOps **Plan** stage:
 | [Project Issue Board](user/project/issue_board.md)                                                                                                                                                                                                                 | Display issues on a Scrum or Kanban board.                                                                                                       |
 | [Quick Actions](user/project/quick_actions.md)                                                                                                                                                                                                                     | Shortcuts for common actions on issues or merge requests, replacing the need to click buttons or use dropdowns in GitLab's UI.                   |
 | [Related Issues](user/project/issues/related_issues.md) **(STARTER)**                                                                                                                                                                                              | Create a relationship between issues.                                                                                                            |
+| [Requirements Management](user/project/requirements/index.md) **(ULTIMATE)** | Check your products against a set of criteria. |
 | [Roadmap](user/group/roadmap/index.md) **(ULTIMATE)**                                                                                                                                                                                                              | Visualize epic timelines.                                                                                                                        |
 | [Service Desk](user/project/service_desk.md) **(PREMIUM)**                                                                                                                                                                                                         | A simple way to allow people to create issues in your GitLab instance without needing their own user account.                                    |
 | [Time Tracking](user/project/time_tracking.md)                                                                                                                                                                                                                         | Track time spent on issues and merge requests.                                                                                                   |