Reading material for this tutorial (German):
Requirements:
- clone this repository and run it in an http server
Optional requirements:
- install Node.js
- install NPM
- install http-server
- install Gulp
- install Bower
- install LiveReload Chrome Plugin (https://chrome.google.com/webstore/detail/livereload/jnihajbhpnppcggbcgedagnkighmdlei)