Modification of the PAHFIT v2.1 docs

[ThomasSYLai]

This PR is a replacement for PR #138. The text has been edited following the comments. The figure of the fitted results of the 2.5-38 µm spectrum has also been added.

[codecov-commenter]

Codecov Report

Merging #170 (aecb59d) into master (3ea53e1) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #170   +/-   ##
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  Coverage   51.74%   51.74%           
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  Files           8        8           
  Lines         516      516           
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  Hits          267      267           
  Misses        249      249           

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[ThomasSYLai]

@karllark, I didn't quite get where this warning --- "/home/runner/work/pahfit/pahfit/docs/PAHFIT_v2.1.rst:document isn't included in any toctree" is coming from. Can you point me to a correct way to fix this? Thanks!

[karllark]

@karllark, I didn't quite get where this warning --- "/home/runner/work/pahfit/pahfit/docs/PAHFIT_v2.1.rst:document isn't included in any toctree" is coming from. Can you point me to a correct way to fix this? Thanks!

You need to include a link to version_description.rst in index.rst so that users can find the description of the different versions. Just add it to the list of topics in "User Documentation."

[ThomasSYLai]

@karllark, I didn't quite get where this warning --- "/home/runner/work/pahfit/pahfit/docs/PAHFIT_v2.1.rst:document isn't included in any toctree" is coming from. Can you point me to a correct way to fix this? Thanks!

You need to include a link to version_description.rst in index.rst so that users can find the description of the different versions. Just add it to the list of topics in "User Documentation."

Thanks. I've added the links to index.rst.

[karllark]

Great. Will merge this when PR #116 is merged.