[EN] Update community links

Author: hankache

rakuguide.adoc

@@ -3334,4 +3334,6 @@ This should be your go to place for any enquiry for which you want an immediate
 
 * link:https://www.reddit.com/r/rakulang/[/r/rakulang] subscribe to the Raku subreddit.
 
-* link:https://twitter.com/raku_news[@raku_news] follow the community on twitter.
+* link:https://x.com/raku_news[@raku_news] follow the community on X.
+
+* link:https://fosstodon.org/@rakulang[@rakulang] follow the community on Mastodon.