Add X and Mastodon groups to Community

[paulreece]

Hi I'm a member and admin of the Mastodon group but I would like both of these added to the Community heading if possilbe. Thanks!

• X Ruby AI group
• Mastodon Ruby AI and Data group

[arbox]

 @paulreece , looks like those groups catch some significant traction. Feel free to provide a PR for with those links, would much appreciate your contribution 👍