message: Remove GitHub discussions link
  GitHub Discussions forum is disabled for the repo and the link does not work.
diff: @@ -169,7 +169,6 @@ always trust the results you get.
  <b>Join Our Community</b><br/>
  <ul>
  <li><a href="https://discord.gg/enso">Discord chat. Get help, share your use cases, meet the team behind Enso and other Enso users!</a></li>
  - <li><a href="https://github.com/enso-org/enso/discussions">GitHub Discussion Forum</a></li>
  </ul>
  </ul></ul>
  