headに<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>を追加．
以下のような簡単なhtmlでlatexを埋め込みできる．
エディタで保存し，chromeなどで開いてみてほしい．
<head>
<meta charset="utf-8">
<script>window.MathJax = { MathML: { extensions: ["mml3.js", "content-mathml.js"]}};</script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
</head>
