Blog post about using Pandoc and doing everything in one branch for lessons

Ah, that makes sense. Then https://github.com/gvwilson/subdir/blob/gh-pages/src/Makefile would probably want to add the `-s` flag to the pandoc command to generate complete HTML instead of an HTML fragment.  Pandoc's templating system is pretty good but I don't think as flexible as Liquid, not sure if that would be an issue.  

Yup, using `.nojekyll` instead of having a `_config.yml` would make it clear that we weren't using Jekyll.