added new theme, sphinx-bootstrap with modifications
added new theme, sphinx-bootstrap with modifications

mathjax/MathJax-docs,GerHobbelt/MathJax-docs,Axure/MathJax-docs,mathjax/MathJax-docs,mitya57/mathjax-docs,Axure/MathJax-docs,GerHobbelt/MathJax-docs,mitya57/mathjax-docs