About Katex #1486
Description
Please follow this Issue template to provide relevant information, such as source code repositories, blog links, and screenshots, which will help us investigate.
请按照此 Issue 模版提供相关信息，例如源码仓库、博客链接和屏幕截图，这将有助于我们进行调查。
Issue Checklist
- I am using the latest version of NexT.
- I have read the relevant documents of Hexo and NexT.
- I have reviewed the latest Roadmap on GitHub and searched for current issues, which does not help me.
Expected behavior
Actual behavior
- Links to demo site with this feature: About | Makise Von's Blog
- Links to repository or source code of the blog: N/A
Other Information
希望Katex能和Mathjax一样都在 <head> 引入，方便其他地方检测并渲染。