DOCS: Address vale warnings

[klmcadams]

Address vale warnings in the documentation. This should fix the error in the ansys/actions workflow

[github-actions]

The documentation for this pull request will be available at https://mechanical.docs.pyansys.com/pull/1299. Please allow some time for the documentation to be deployed.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.08% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (2ee531b)	2619	2256	86.14%
Head commit (7cb0013)	2619 (+0)	2254 (-2)	86.06% (-0.08%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1299)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.06%. Comparing base (2ee531b) to head (7cb0013).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1299      +/-   ##
==========================================
- Coverage   86.13%   86.06%   -0.08%     
==========================================
  Files          40       40              
  Lines        2619     2619              
==========================================
- Hits         2256     2254       -2     
- Misses        363      365       +2     

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