Fix multiline GitHub admonitions

[timkpaine]

Description

Brief description of the changes in this PR.

Type of Change

• Bug fix
• New feature
• Documentation update
• Refactor / code cleanup
• CI / build configuration
• Other (describe below)

Checklist

• Linting passes (make lint)
• Tests pass (make test)
• New tests added for new functionality
• Documentation updated (if applicable)
• Changelog / version bump (if applicable)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.33%. Comparing base (9860056) to head (bab43c6).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #160      +/-   ##
==========================================
+ Coverage   86.20%   86.33%   +0.13%     
==========================================
  Files          16       16              
  Lines        2030     2042      +12     
  Branches      209      209              
==========================================
+ Hits         1750     1763      +13     
  Misses        218      218              
+ Partials       62       61       -1     

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