Update Project:Help on mediawiki.org so that it links to all pages in the Project namespace relevant for contributors to mediawiki.org, either directly or via a landing page, including:

• pages related to communication, such as News and Project:Mastodon
• site policies
• user group pages
• Project:Bots
• pages related to files, such as Project:File alert tags and Project:File copyright tags
• Project:Categories
• Information about the organization of the site
• pages related to groups and projects
• Project:Translation
• (More specifics to be determined)