Update README to reflect move to GitHub Discussions

[RMeli]

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📚 Documentation preview 📚: https://mdanalysis--4375.org.readthedocs.build/en/4375/

[github-actions]

Linter Bot Results:

Hi @RMeli! Thanks for making this PR. We linted your code and found the following:

Some issues were found with the formatting of your code.

Code Location	Outcome
main package	⚠️ Possible failure
testsuite	✅ Passed

Please have a look at the darker-main-code and darker-test-code steps here for more details: https://github.com/MDAnalysis/mdanalysis/actions/runs/7293816302/job/19877570983

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (abee0bb) 93.41% compared to head (f90d40c) 93.41%.

Additional details and impacted files

@@            Coverage Diff             @@
##           develop    #4375     +/-   ##
==========================================
  Coverage    93.41%   93.41%             
==========================================
  Files          171      185     +14     
  Lines        22511    23625   +1114     
  Branches      4129     4129             
==========================================
+ Hits         21028    22069   +1041     
- Misses         963     1036     +73     
  Partials       520      520             

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[orbeckst]

This looks fine. Maybe generate a banner with shield.io for GH Discussions in their place?

Please check other places such as https://github.com/MDAnalysis/mdanalysis/blob/develop/package/pyproject.toml (and setup.py?) ... I'd git grep the whole source tree.

Thanks for the update... sorry for brevity.

[RMeli]

@orbeckst, very good point. I didn't look past the readme. I now added the shield and removed all occurrences. I also toned down the "question" issue template, since it would be trivial now to migrate an issue to a discussion.

[orbeckst]

Thank you for the thorough scouring of the docs — there were more places than I thought. LGTM

Other places:

• Could you please also look at the UG? I assume we have similar occurrences there.
• Did you change the website?
• Teaching materials? — These can probably be updated as we go along.
• MDAKits??

[orbeckst]

@RMeli please squash-merge when you're happy with it.

[RMeli]

Yes, I'll look at the other places in the coming days, thanks for bringing this up!