Edit README.md

What does this MR do?

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together

What are the relevant issue numbers?

README.md

@@ -109,6 +109,12 @@ For upgrading information please see our [update page](https://about.gitlab.com/
 All documentation can be found on <https://docs.gitlab.com>.
+Some more documentation here.
+
+This is another line of documentation.
+
+TODO: Add more documentation.
+
 ## Getting help
 Please see [Getting help for GitLab](https://about.gitlab.com/getting-help/) on our website for the many options to get help.