[tex4ht] about configuring where to load mathjax from when using tex4ht in mathjax mode.

[Michal Hoftich]

Hi Nasser,

> All the above should go to your .cfg file under the \Preamble tag.
>
> I also just compiled a large file with lots of math using V3 mathjax
> and so far I see no problems with the math. I also noticed mathjax is
> now faster than before !

I've updated TeX4ht sources to use MathJax 3, it seems to work nicely
and faster so far. I think the update will be available only in TL
2020, as updates are frozen already.

Best regards,
Michal