Move markdown comment markers out of code block

[asmacdo]

Fixes #88

The problem wasn't the marker, it was that it was inside of a literal block.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.79%. Comparing base (48d606a) to head (4bc7921).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
- Coverage   87.54%   86.79%   -0.76%     
==========================================
  Files           1        1              
  Lines         265      265              
  Branches       41       41              
==========================================
- Hits          232      230       -2     
- Misses         25       27       +2     
  Partials        8        8              

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