refactor: refine documents and benchmarks

[lambdalisue]

SSIA

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.88%. Comparing base (243dfc5) to head (9e0b450).
Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #129   +/-   ##
=======================================
  Coverage   99.88%   99.88%           
=======================================
  Files          50       50           
  Lines         909      909           
  Branches      104      104           
=======================================
  Hits          908      908           
  Misses          1        1           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Milly]

@lambdalisue I think it would be better to add baseline: true option to the current side of bench.

[lambdalisue]

I thought so but the number of files are too much so I gaved up. If I add baseline: true, I cannot simply perform Copy & Paste from existing code.