我给你的模版添加了【支持本地LaTeX】功能

[guofei9987]

方法看这个就行了
http://www.guofei.site/2017/05/06/blog.html#title3
具体是，改了3个文件
https://github.com/guofei9987/guofei9987.github.io/blob/master/_includes/header.html
https://github.com/guofei9987/guofei9987.github.io/blob/master/_includes/header_title.html
https://github.com/guofei9987/guofei9987.github.io/blob/master/public/js/base.js