First pages commit.  Add simple index.html.
Add some math to index.html as eyeball test.
Add jekyll config.
Fix path to MathJax.js
Allow mathjax in modified <code> for jekyll purposes.
Do the same as dc0242e755cda589efbaa4786a6b43d87c52dcd2 for <pre>
Update macros
Merge branch 'gh-pages' of github.com:froystig/MathJax into gh-pages