[Feature request] renderPageContent 中 添加一个新的hook beforeRenderPageContent

[zenonux]

Clear and concise description of the problem

希望在读取md文件后，对md文件本身做一些处理之后，再丢给markdown-it去解析

Suggested solution

function beforeRenderPageContent(content: string) {
  return content;
}

Alternative

No response

Additional context

No response

[Mister-Hope]

一个markdown-it插件可以做到