Legalities

The website needs some missing legalities:

• See SPF Économie for required informations
• Conditions Générales de Ventes & Services (prendre inspiration de ticup & autre, attention pas de blind copy-paste + ajouter attribution là ou nécessaire)
• Privacy notice (review various options online including specific ones regarding to FLOSS projects)
• Security notice (readable page + update of security.txt) (get inspiration from FLOSS projects online)