Feat home explain

[ff-puct]

主要变更 a、语言设计页面 UI 结构搭建 b、mardown 文件拷贝粘贴

[github-actions[bot]]

🎊 PR Preview dd66732ce20fcbcef25d1dbf38a8df34f7601db6 has been successfully built and deployed to https://antvis-antvis-github-io-preview-pr-91.surge.sh

:clock1: Build time: 410.941s

_{🤖 By surge-preview}

[lgtm-com[bot]]

This pull request introduces 8 alerts and fixes 1 when merging 056dbf91c41ce94ff6e5150a47634dfdf7ded2da into 96c842f77d8431e8daaff2bcbd8fc10763be6fcd - view on LGTM.com

new alerts:

• 7 for Potentially unsafe external link
• 1 for Unused variable, import, function or class

fixed alerts:

• 1 for Unused variable, import, function or class