Small fixes to docs

[isaacgsmith]

Small changes related to two of my recently-merged pull requests.

Description

• Reformatting and making corrections to virtual packet logging documentation (see https://smithis7.github.io/tardis/branch/small_fixes_doc/io/output/vpacket_logging.html)
• Fixing poorly-formatted docstring in tardis/montecarlo/spectrum.py.

Motivation and context

How has this been tested?

• Testing pipeline.
• Documentation built locally.

Type of change

• Bug fix.
• New feature.
• Breaking change.
• None of the above.

Checklist

• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
  • (optional) I have built the documentation on my fork following the instructions.
• I have assigned and requested two reviewers for this pull request.

[tardis-bot]

Before a pull request is accepted, it must meet the following criteria:

• Is the necessary information provided?
• Is this a duplicate PR?
  • If a new PR is clearly a duplicate, ask how this PR is different from the original PR?
  • If this PR is about to be merged, close the original PR with a link to this new PR that solved the issue.
• Does it pass existing tests and are new tests provided if required?
  • The test coverage should not decrease, and for new features should be close to 100%.
• Is the code tidy?
  • No unnecessary print lines or code comments.

[tardis-bot]

Before a pull request is accepted, it must meet the following criteria:

• Is the necessary information provided?
• Is this a duplicate PR?
  • If a new PR is clearly a duplicate, ask how this PR is different from the original PR?
  • If this PR is about to be merged, close the original PR with a link to this new PR that solved the issue.
• Does it pass existing tests and are new tests provided if required?
  • The test coverage should not decrease, and for new features should be close to 100%.
• Is the code tidy?
  • No unnecessary print lines or code comments.

[codecov]

Codecov Report

Merging #1716 (b5e46d5) into master (7d3899e) will increase coverage by 0.81%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1716      +/-   ##
==========================================
+ Coverage   61.06%   61.87%   +0.81%     
==========================================
  Files          63       63              
  Lines        5820     5852      +32     
==========================================
+ Hits         3554     3621      +67     
+ Misses       2266     2231      -35     

Impacted Files	Coverage Δ
tardis/tardis/io/atom_data/base.py	89.77% <0.00%> (-1.51%)	⬇️
tardis/tardis/util/base.py	74.35% <0.00%> (-1.44%)	⬇️
tardis/tardis/base.py	57.69% <0.00%> (-1.40%)	⬇️
...s/tardis/plasma/properties/radiative_properties.py	77.18% <0.00%> (-0.53%)	⬇️
tardis/tardis/io/util.py	71.67% <0.00%> (-0.52%)	⬇️
tardis/tardis/simulation/base.py	82.88% <0.00%> (-0.45%)	⬇️
tardis/tardis/plasma/properties/nlte.py	38.83% <0.00%> (-0.39%)	⬇️
tardis/tardis/montecarlo/base.py	88.77% <0.00%> (ø)
tardis/tardis/montecarlo/spectrum.py	65.51% <0.00%> (ø)
tardis/tardis/util/colored_logger.py
... and 7 more

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[jaladh-singhal]

Looks perfect!