Squashed commit of the following:

commit 59d7edfc
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 11:32:19 2020 +0100

    ci : modification readme et ajout des licences

commit 351dbbcd
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 09:19:20 2020 +0100

    ci : installation npm + suppression fichier css