Add MathJax support for Content MathML

notebook/static/notebook/js/mathjaxutils.js

@@ -17,6 +17,9 @@ define([
                     processEscapes: true,
                     processEnvironments: true
                 },
+                MathML: {
+                    extensions: ['content-mathml.js']
+                },
                 // Center justify equations in code and markdown cells. Elsewhere
                 // we use CSS to left justify single line equations in code cells.
                 displayAlign: 'center',