fix(jsr): exclude unused markdown files

[ryuapp]

These may have been included because they could not be linked to files on GitHub before on JSR, but now they are linked correctly like npm. Therefore, it is better to exclude them.

The author should do the following, if applicable

• Add tests
• Run tests
• bun run format:fix && bun run lint:fix to format the code
• Add TSDoc/JSDoc to document the code

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.72%. Comparing base (4eb101d) to head (4d4315a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3767   +/-   ##
=======================================
  Coverage   91.72%   91.72%           
=======================================
  Files         159      159           
  Lines       10178    10178           
  Branches     2896     2857   -39     
=======================================
  Hits         9336     9336           
  Misses        841      841           
  Partials        1        1           

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[yusukebe]

LGTM!

[yusukebe]

Hi @ryuapp

Nice! Looks good to me.