👌 IMPROVE: Checking mathjax version and functioning accordingly

[AakashGfude]

Decoding mathjax version based on mathjax_path config variable, and using the hardcoded mathjax configuration only for version 3. Which will be removed at a later stage #138

[codecov]

Codecov Report

Merging #150 (c75de5a) into master (13d5f7a) will decrease coverage by 0.07%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #150      +/-   ##
==========================================
- Coverage   72.29%   72.22%   -0.08%     
==========================================
  Files           2        2              
  Lines         231      234       +3     
==========================================
+ Hits          167      169       +2     
- Misses         64       65       +1     

Flag	Coverage Δ
pytests	72.22% <66.66%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
quantecon_book_theme/__init__.py	61.48% <66.66%> (+0.10%)	⬆️

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[mmcky]

thanks @AakashGfude this seems like a sensible way forward for mathjax compatibility.

Should we add the macro's for v2 as well using the Mathjax.Hub api?

[AakashGfude]

thanks @AakashGfude this seems like a sensible way forward for mathjax compatibility.

Should we add the macro's for v2 as well using the Mathjax.Hub api?

@mmcky I was thinking since we can use the config variable to define it mathjax_config in _config.yml. We should just define the v2 configs there?