Added LaTeX support via MathJax

[k-deeley]

Closes #11

[k-deeley]

GitHub conversion looks good. GitLab conversion in progress.

[k-deeley]

Currently testing GitLab support

[k-deeley]

@ebenetce If you have time, please do some testing on this branch. Syntax will be:

mathScripts = fullfile(docmakerroot(), "resources", ["mathjax-config.js", "mathjax.js"]; docconvert("MyMarkdownWithLaTeX.md", "Scripts", mathScripts, "MathRenderer", "auto")

You can also test with "MathRenderer", "GitHub" or "GitLab" depending on which one you're using.

[ebenetce]

• This file should be renamed to tex-mml-chtml.js, which what it actually is.
• I don't think it should be included in the repo, we can pull it at build time if needed.
• I would prefer if there was a name value pair to "include math" rather than pulling an internal script