[DOC] Ecrire le README

Created by: Donovan Bourlard

Imported comments:

By Michael Edlich on 2018-09-12T20:02:10.291Z

closed

By Michael Edlich on 2018-09-12T20:01:29.336Z

ok

By Donovan Bourlard on 2018-09-12T19:58:43.742Z

changed milestone to %6

By Donovan Bourlard on 2018-09-05T20:45:28.205Z

added ~5851965 and removed ~4204844 labels

By Donovan Bourlard on 2018-09-05T20:45:13.405Z

mentioned in commit a99b1cd3

By Donovan Bourlard on 2018-09-05T20:33:52.412Z

assigned to @awkan