guqing cabcd98ef4 feat: add content extension points for post and single page on theme-side (#4080) ... #### What type of PR is this? /kind feature /milestone 2.7.x /area core #### What this PR does / why we need it: 为主题端的文章和自定义页面内容添加扩展点 插件可以通过实现扩展点来干预文章和自定义页面的内容显示，如修改内容的 html 结构，改变特定样式等 使用方式参考：[docs/extension-points/content.md](9b2b9f1837) #### Which issue(s) this PR fixes: Fixes #4003 #### Does this PR introduce a user-facing change? ```release-note 为主题端的文章和自定义页面内容添加扩展点 ```		2023-06-28 15:30:11 +00:00
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content.md	feat: add content extension points for post and single page on theme-side (#4080)	2023-06-28 15:30:11 +00:00