This is a GitHub Pages repo, so you can render the pages with Jekyll. First make sure to install Ruby and then the bundler gem. Then:

1. bundle install, which will install Jekyll.
2. bundle exec jekyll serve --watch
3. go to http://localhost:4000/android-tutorials/

You are now ready to make changes!

You could also use your favorite manager, chruby, rbenv, rvm, etc. For RVM, follow the quick installation guide and then run:

$ rvm install 2.2.1  # inside `codebar/tutorials` folder
$ rvm gemset use codebar-tutorial --create
$ gem install bundler
$ bundle install
$ jekyll serve  # go to http://127.0.0.1:4000