Add navigation

README.md

@@ -1,5 +1,15 @@
 # Second
 
+## Navigation
+
+- [Project hub][hub]
+- [Announcements][announce]
+- [CloudTube repo][cloudtube]
+- › Second repo
+- [Mailing list][list] for development and discussion
+- [Todo tracker][todo] for listing problems and feature requests
+- [Chatroom on Matrix][matrix]
+
 A Python web project that mirrors the Invidious API, passing all calls
 directly to youtube-dl and reformatting the response to be compatible.
 
@@ -27,3 +37,11 @@ These endpoints are somewhat implemented:
 ## License
 
 AGPL 3
+
+[hub]: https://sr.ht/~cadence/tube/
+[announce]: https://lists.sr.ht/~cadence/tube-announce
+[cloudtube]: https://git.sr.ht/~cadence/cloudtube
+[second]: https://git.sr.ht/~cadence/Second
+[list]: https://lists.sr.ht/~cadence/tube-devel
+[todo]: https://todo.sr.ht/~cadence/tube
+[matrix]: https://matrix.to/#/#cloudtube:cadence.moe