https://github.com/rouge-ruby/rouge/wiki/List-of-supported-languages-and-lexers

https://min9nim.github.io/2018/07/jekyll-theme/

https://frankindev.com/2017/03/18/syntax-highlight-with-rouge-in-jekyll/

https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference

https://help.github.com/en/github/working-with-github-pages/testing-your-github-pages-site-locally-with-jekyll