Squashed commit of the following:

commit e0cf82a5
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 16:18:13 2020 +0100

    ci : installation npm

commit a907ef07
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 11:24:05 2020 +0100

    ci : modification readme

commit 38e48bf6
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 10:46:22 2020 +0100

    ci : modification readme

commit 1353c6c6
Author: Morgan Blanloeil <morgan.blanloeil@kosmos.fr>
Date:   Fri Jan 10 09:19:13 2020 +0100

    ci : installation npm + suppression fichier css