docs: add note about compatibility with markdown-it-attrs

[uncenter]

Description

Adds note about possible compatibility issues with another markdown-it plugin.

Linked Issues

Closes #88.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5f1efbc) 92.42% compared to head (f676c46) 92.42%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #93   +/-   ##
=======================================
  Coverage   92.42%   92.42%           
=======================================
  Files          52       52           
  Lines        4556     4556           
  Branches      535      535           
=======================================
  Hits         4211     4211           
  Misses        340      340           
  Partials        5        5           

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[uncenter]

Should the notice stay where I put it or maybe under the line highlight feature section since it only really applies there?

[antfu]

Yeah I think putting it under highlight with a ::: note callout would be better indeed

[uncenter]

I'm getting this error when I try to run pnpm docs:dev.

> @ docs:dev /Users/uncenter/Dev/shikiji/docs
> vitepress dev

node:internal/modules/esm/resolve:264
    throw new ERR_MODULE_NOT_FOUND(
          ^

Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/Users/uncenter/Dev/shikiji/node_modules/.pnpm/vitepress@1.0.0-rc.36_@algolia+client-search@4.22.0_@types+node@20.11.0_fuse.js@7.0.0_postcss_qmjcx63xrjf7mow5n2ei3uex4m/node_modules/shikiji/dist/index.mjs' imported from /Users/uncenter/Dev/shikiji/node_modules/.pnpm/vitepress@1.0.0-rc.36_@algolia+client-search@4.22.0_@types+node@20.11.0_fuse.js@7.0.0_postcss_qmjcx63xrjf7mow5n2ei3uex4m/node_modules/vitepress/dist/node/cli.js
    at finalizeResolution (node:internal/modules/esm/resolve:264:11)
    at moduleResolve (node:internal/modules/esm/resolve:917:10)
    at defaultResolve (node:internal/modules/esm/resolve:1130:11)
    at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:396:12)
    at ModuleLoader.resolve (node:internal/modules/esm/loader:365:25)
    at ModuleLoader.getModuleJob (node:internal/modules/esm/loader:240:38)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:85:39)
    at link (node:internal/modules/esm/module_job:84:36) {
  code: 'ERR_MODULE_NOT_FOUND',
  url: 'file:///Users/uncenter/Dev/shikiji/node_modules/.pnpm/vitepress@1.0.0-rc.36_@algolia+client-search@4.22.0_@types+node@20.11.0_fuse.js@7.0.0_postcss_qmjcx63xrjf7mow5n2ei3uex4m/node_modules/shikiji/dist/index.mjs'
}

Node.js v20.11.0
 ELIFECYCLE  Command failed with exit code 1.