Updated RELEASE_NOTES.

RELEASE_NOTES.md

@@ -10,6 +10,8 @@ Added Brazilian Portuguese translation (contributed by daltux).
 
 Added Finnish translation (contributed by inz).
 
+Added French translation (contributed by Popolon).
+
 ## 2.73
 
 Added support for customizing and translating the web UI language via simple `.po` files. For more information on how to install language files or create new ones, please see `snac(8)` (the administrator manual).