The visualization tutorials website is built with Jekyll and uses the github-pages plugin. It is build directly by github pages.
$ sudo apt-get install ruby-dev
Requires Jekyll 3 or later. Requires Ruby 2.1.0 or later
You can find your version of Ruby with :
$ Ruby -v
If you need to update Ruby, instructions can be found here
$ gem install jekyll
$ gem install bundler
Then clone the repository:
$ git clone https://github.com/dataviscourse/tutorials
We're on the gh-pages branch:
$ cd tutorials
$ git checkout gh-pages
Now install the necessary stuff:
$ bundle install
$ bundle exec jekyll serve
$ open http://0.0.0.0:4000/tutorials/
https://github.com/Shopify/liquid/wiki/Liquid-for-Designers
http://jekyll-windows.juthilo.com/1-ruby-and-devkit/
Just push your changes, GitHub Pages will automatically build.
See this tutorial if you're running into problems.