Update third-party-application.md to include Grayjay under Android applications
Added Grayjay, with short description, to the list of android applications listed on the third party application page.
Mardi 24 septembre, à partir de 8 heures, nous mettrons à jour le système d'exploitation du serveur de Framagit.
La coupure ne devrait pas prendre plus de quatre heures.
Added Grayjay, with short description, to the list of android applications listed on the third party application page.