Pre-requisites: knowing at least one version control system. The tutorial is made for someone who knows nothing about Git and only scratches the many features of this version control system.
First, clone the repository for the tutorial:
git clone http://git.nathalievilla.org/tuto poesies
Disclaimer: the practical application shows an interactive use of Git with several users. Some command lines cannot be practiced with the current state repository.
SOMbrero git repository (dedicated to Laura B.):