fix: update --coverage-dir examples

[bartveneman]

Leftover documentation update from #100

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.76%. Comparing base (67eb813) to head (bc34532).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #121   +/-   ##
=======================================
  Coverage   96.76%   96.76%           
=======================================
  Files          14       14           
  Lines        1081     1081           
  Branches      143      143           
=======================================
  Hits         1046     1046           
  Misses         34       34           
  Partials        1        1           

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[codecov-commenter]

Bundle Report

Changes will decrease total bundle size by 8 bytes (-0.03%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
cli.js-esm	14.27kB	-8 bytes (-0.06%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: cli.js-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
cli.mjs	-8 bytes	14.27kB	-0.06%

Files in cli.mjs:

• ./src/cli/help.ts → Total Size: 1.37kB