Lots of little changes
- Added emoji (should silently fallback if not using a luatex flavour)
- Added sympa
- Added overleaf
- Deprecated Intranet Irisa and ShareLatex
- Edited badge section
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565