website-theme/layouts/partials/mathjax_support.html

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML">
MathJax.Hub.Config({
  tex2jax: {
    inlineMath: [['$','$'], ['\\(','\\)']],
    displayMath: [['$$','$$'], ['\[','\]']],
    processEscapes: true,
    processEnvironments: true,
    skipTags: ['script', 'noscript', 'style', 'textarea', 'pre','code'],
    TeX: {
      equationNumbers: { autoNumber: "AMS" },
      extensions: ["AMSmath.js", "AMSsymbols.js"]
    }
  }
})
</script>