Typo fix (than vs. then)
Merge pull request #813 from n0nick/patch-1

Typo fix (than vs. then)
fixed typo (missing space)
Merge pull request #816 from trevorah/patch-1

fixed typo (missing space)
Convert docs to use fenced code blocks again

Since GitHub Pages now supports it: https://github.com/blog/1366-github-pages-updated-to-jekyll-0-12-0