about: add new jami project contributors

Change-Id: I0241a3dbb11b2bd0c84eaa57f2b6b835159bd6a1

jami-android/app/src/main/res/values/strings.xml

@@ -81,6 +81,7 @@ along with this program; if not, write to the Free Software
         \nEmmanuel Lepage-Vallée
         \nFadi Shehadeh
         \nFranck Laurent
+        \nFrançois-Simon Fauteux-Chapleau
         \nFrédéric Guimont
         \nGuillaume Heller
         \nGuillaume Roguez
@@ -88,6 +89,7 @@ along with this program; if not, write to the Free Software
         \nHugo Lefeuvre
         \nJulien Grossholtz
         \nKateryna Kostiuk
+        \nKessler Dupont-Teevin
         \nLéo Banno-Cloutier
         \nLiam Courdoson
         \nLoïc Siret