Make LaTeX compatible with MathJax version 3 (#230)

Bobby

21.09.2019 30850ff725aa5c12d7951c777e10bb9d343e85ba

Make LaTeX compatible with MathJax version 3 (#230)

* Make MathJax version 3 work

* Change my contributor link

 CONTRIBUTORS.md

@@ -46,3 +46,4 @@
- [Lionel Brianto](https://lionel.brianto.dev)
- [Luis Zarate](https://github.com/jlzaratec)
- [Ariejan de Vroom](https://www.devroom.io)
- [Bobby Lindsey](https://bobbywlindsey.com)

 layouts/partials/posts/math.html

@@ -1,25 +1,23 @@
{{- if .Params.math -}}
  <script type="text/javascript" async
    src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js">
    MathJax.Hub.Config({
      tex2jax: {
        inlineMath: [['$','$']],
        displayMath: [['$$','$$']],
  <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
  <script type="text/javascript" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/startup.js" id="MathJax-script"></script>
  <script>
    MathJax = {
      tex: {
        inlineMath: [
          ['$', '$']
        ],
        displayMath: [
          ['$$', '$$']
        ],
        processEscapes: true,
        processEnvironments: true,
        skipTags: ['script', 'noscript', 'style', 'textarea', 'pre'],
        TeX: { extensions: ["AMSmath.js", "AMSsymbols.js"] }
        processEnvironments: true
      },
      options: {
        skipHtmlTags: ['script', 'noscript', 'style', 'textarea', 'pre']
      }
    });
    MathJax.Hub.Queue(function() {
      // Fix <code> tags after MathJax finishes running. This is a
      // hack to overcome a shortcoming of Markdown. Discussion at
      // https://github.com/mojombo/jekyll/issues/199
      var all = MathJax.Hub.getAllJax(), i;
      for(i = 0; i < all.length; i += 1) {
          all[i].SourceElement().parentNode.className += ' has-jax';
      }
    });
    };
  </script>
{{- end -}}
{{- if .Params.katex -}}