Set row_spacing=2 in docs

[ahuang11]

Closes #677

Encountered this when LLM copied it, and I was a bit stumped as to why there was no spacing in between rows.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.86%. Comparing base (bfab387) to head (84a8d4f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #683   +/-   ##
=======================================
  Coverage   82.86%   82.86%           
=======================================
  Files          33       33           
  Lines        3799     3799           
=======================================
  Hits         3148     3148           
  Misses        651      651           

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