🔍️ Improve markdown anchor tokens and targets

Author: pboling

CONTRIBUTING.md

@@ -1,20 +1,21 @@
 ## Contributing
 
-Bug reports and pull requests are welcome on GitLab at [https://gitlab.com/oauth-xx/snaky_hash/][source]. This project is
+Bug reports and pull requests are welcome on GitLab at [https://gitlab.com/oauth-xx/snaky_hash/][🚎src-main]. This project is
 intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to
 the [code of conduct][conduct].
 
 To submit a patch, please fork the project and create a patch with
 tests. Once you're happy with it send a pull request and post a message to the
-[google group][mailinglist].
+[google group][mailinglist] or on the [gitter chat][🏘chat].
 
 ## Contributors
 
-See: [https://gitlab.com/oauth-xx/oauth-tty/-/graphs/main][🚎contributors]
+See: [https://gitlab.com/oauth-xx/snaky_hash/-/graphs/main][🚎contributors]
 
 [comment]: <> (Following links are used by README, CONTRIBUTING, Homepage)
 
 [conduct]: https://gitlab.com/oauth-xx/snaky_hash/-/blob/main/CODE_OF_CONDUCT.md
 [🚎contributors]: https://gitlab.com/oauth-xx/snaky_hash/-/graphs/main
 [mailinglist]: http://groups.google.com/group/oauth-ruby
-[source]: https://gitlab.com/oauth-xx/snaky_hash/-/tree/main
+[🚎src-main]: https://gitlab.com/oauth-xx/snaky_hash/-/tree/main
+[🏘chat]: https://gitter.im/oauth-xx/community