Adds dummy template for future content.

If you'd like to add a new program:

1. Copy the config template in _config.yml, add your own short name for the
program, and fill out the fields.
2. Copy the program-short-name.html file to a new file (named with the same
short name you used in the config). Update 'program-short-name' in that new
file with the same short name as well.
3. Copy and uncomment the example link in _includes/program-nav.html to point
to your new file.
Merge branch 'master' of github.com:praxisnetwork/praxisnetwork.github.com