Bump Cloudfare cdnjs references from mathjax/3.0.0 to at least mathjax/3.0.1

[shawnohare]

I was attempting a hello world tex -> html conversion using the tex2chtml-page component and noticed that font resources (and other things) reference https://cdnjs.cloudflare.com/ajax/libs/mathjax/3.0.0/* which does not appear to exist.

The earliest version of MathJax 3 listed is 3.0.1. As a result, the browser rendering oftex2chtml-page is very poor, since none of the appropriate font files are loaded. A simple find/replace of

sed -i -e 's/mathjax\/3.0.0/mathjax\/3.0.5/g' $OUTPUT_FROM_tex2chtml-page

looks to be rendered as expected, as appropriate font assets are loaded.

[dpvc]

Thanks. I'm preparing a 3.1.0 release, and have already updated the fontURL links for that. It should be out soon.

[shawnohare]

Awesome! Thanks!