pytest doctest docutils: Tests and fixes

[tony]

• chore(pdd): Disable doctest to prevent collecting twice over

[tony]

cc @Thisch

Letting you know this place / effort exists

[codecov-commenter]

Codecov Report

Merging #3 (bf0efac) into master (153e9e1) will decrease coverage by 0.52%.
The diff coverage is 90.00%.

❗ Current head bf0efac differs from pull request most recent head ef67558. Consider uploading reports for the commit ef67558 to get more accurate results

@@            Coverage Diff             @@
##           master       #3      +/-   ##
==========================================
- Coverage   57.78%   57.25%   -0.53%     
==========================================
  Files          11       11              
  Lines         694      634      -60     
==========================================
- Hits          401      363      -38     
+ Misses        293      271      -22     

Impacted Files	Coverage Δ
src/pytest_doctest_docutils.py	37.23% <50.00%> (+3.90%)	⬆️
tests/test_pytest_doctest_docutils.py	100.00% <100.00%> (ø)
gp_libs/__about__.py	0.00% <0.00%> (-100.00%)	⬇️
gp_libs/__init__.py	0.00% <0.00%> (-42.86%)	⬇️
docs/conf.py

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