Add a help page

[maehler]

Each section, and possibly subcomponents in each section, should link to relevant sections of the documentation.

[dilema]

Need to see with GenIE-CMS to homogenize but here are the three alternative I'm considering.

Documentation	Pros	Cons
Read the Docs	Beautiful layout Exportation Persistent Code integration	Leave the site Rely on third party Need to be build
Bookdown	Beautiful layout Exportation Configuration on the fly Code integration	Leave the site Need to use R Need to be build Hardest to learn
HTML/CSS	Stay on the site Easiest to implement No need to build it	Hard to make it beautiful No cool feature like exportation

For learning sake and because I love the GitBook layout (example), my preference goes for Bookdown.