l10n: Add reference for french translation team

Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>

po/TEAMS

@@ -12,6 +12,10 @@ Members:	Thomas Rast <trast@student.ethz.ch>
 		Jan Krüger <jk@jk.gs>
 		Christian Stimming <stimming@tuhh.de>
 
+Language:	fr (French)
+Repository:	https://github.com/jnavila/git
+Leader:		Jean-Noël Avila <jn.avila@free.fr>
+
 Language:	is (Icelandic)
 Leader:		Ævar Arnfjörð Bjarmason <avarab@gmail.com>