Fix broken links on the website
This MR fixes some broken links on the website.
A link is still broken: https://gforge.inria.fr/projects/gtg/, but I don't know the new URL (has it been migrated ?).
[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
This MR fixes some broken links on the website.
A link is still broken: https://gforge.inria.fr/projects/gtg/, but I don't know the new URL (has it been migrated ?).