Calc_dihedral docstring updated

[Hakarishirenai]

Fixes #3936

Changes made in this Pull Request:

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

[codecov]

Codecov Report

Base: 94.38% // Head: 94.27% // Decreases project coverage by -0.11% ⚠️

Coverage data is based on head (9f20503) compared to base (a05a524).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3956      +/-   ##
===========================================
- Coverage    94.38%   94.27%   -0.12%     
===========================================
  Files          194      194              
  Lines        25248    25248              
  Branches      3493     3493              
===========================================
- Hits         23831    23802      -29     
- Misses        1368     1397      +29     
  Partials        49       49              

Impacted Files	Coverage Δ
package/MDAnalysis/lib/distances.py	98.51% <ø> (ø)
package/MDAnalysis/due.py	46.66% <0.00%> (-30.00%)	⬇️
package/MDAnalysis/coordinates/chemfiles.py	92.30% <0.00%> (-4.95%)	⬇️
package/MDAnalysis/coordinates/H5MD.py	95.94% <0.00%> (-1.68%)	⬇️
package/MDAnalysis/converters/ParmEdParser.py	96.89% <0.00%> (-1.56%)	⬇️
package/MDAnalysis/converters/ParmEd.py	91.95% <0.00%> (-1.15%)	⬇️

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[orbeckst]

Thank you. Please address my comments.

Please also

• add yourself to AUTHORS
• add your GitHub handle to CHANGELOG for 2.4.0 at the end of

  mdanalysis/package/CHANGELOG

  Lines 16 to 17 in 3712439

  	??/??/?? IAlibay, Luthaf, hmacdope, rafaelpap, jbarnoud, BFedder, aya9aladdin,
  	jaclark5, jfennick, lilyminium

  (we don't need a CHANGELOG entry for a simple doc fix but you should be listed as contributing to the next release)

[Hakarishirenai]

Thank you for the help, have made necessary changes

[orbeckst]

Thank you @Hakarishirenai , I'll have a look again when the CI check have run. But it's looking very good at first glance.

As a new contributor, please also introduce yourself on the developer mailing list (see https://www.mdanalysis.org/#participating for the link) and mention your work on this PR. It's important that we have an email address where we can reach you because of our ongoing effort to change the license of MDAnalysis. We will not merge this PR until we know how we can contact you in the future.

[orbeckst]

Thank you for introducing yourself https://groups.google.com/g/mdnalysis-devel/c/CjIST5IkZyM/m/Xtcn3D_rAAAJ . I'll merge.

[orbeckst]

Thank you for your first commit! 🚀