For ease of hosting, this site is built on Middleman, a static site generator written in Ruby.
Run bundle install, then middleman server, then point your browser at http://localhost:4567/ to view your local copy of the site.
Template files in the source directory are automatically mapped to the equivalent .html path in the generated site. The source/templates directory contains layouts and partials, and the source/assets directory contains images, stylesheets, etc.
Middleman will watch for changes made to any of these files and show the updates after a reload in your browser.
This repository is on continuous deploy, so it is not necessary to publish changes manually once they are pushed to master on GitHub. For the record, however, the invocation is rake publish.