The website for zeppelin.
src-- contains the jekyll sources for the website itself.
If running Ubuntu you can do:
sudo apt install ruby
sudo apt-get install ruby-dev
sudo gem install bundler jekyll
To preview changes as you are hacking on, do the following:
bundle exec jekyll serve
Then connect to http://127.0.0.1:4000. This will stay updated as you
tweak things, for the most part.