brew install markdown
brew install fswatch
Then visit any of the slide-*
folders for more instructions within
the associated Makefile
http://matt.might.net/articles/intro-to-make/
https://www.gnu.org/software/make/manual/html_node/Introduction.html
https://www.gnu.org/software/make/manual/html_node/Automatic-Variables.html
https://medium.com/@tjholowaychuk/minimizing-boilerplate-with-npm-makefiles-3cfdce2934e7#.eltc8xjwm