📝 docs: update snippet doc

[ONLY-yours]

更新 snippet 文档
Highlight 增加 Tag 展示 & 优化 Hover 问题

[github-actions]

🎊 PR Preview ba89b5d has been successfully built and deployed to https://ant-design-pro-editor-preview-pr-99.surge.sh

🕐 Build time: 67.071s

_{🤖 By surge-preview}

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (25bb6ec) 87.39% compared to head (ba89b5d) 87.45%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #99      +/-   ##
==========================================
+ Coverage   87.39%   87.45%   +0.06%     
==========================================
  Files         349      350       +1     
  Lines       22384    22500     +116     
  Branches     1008     1016       +8     
==========================================
+ Hits        19562    19678     +116     
  Misses       2822     2822              

Files	Coverage Δ
src/Highlight/components/LanguageTag/index.tsx	100.00% <100.00%> (ø)
src/Highlight/defalut.tsx	100.00% <100.00%> (ø)
src/Highlight/index.tsx	100.00% <100.00%> (ø)
src/Highlight/style.ts	100.00% <100.00%> (ø)
src/Highlight/wrapper.tsx	100.00% <100.00%> (ø)
src/Snippet/index.tsx	100.00% <100.00%> (ø)

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[rdmclin2]

+1

[github-actions]

🎉 This PR is included in version 0.25.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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