[grilo/0.2.x] doc: Clarify normalization of the rating

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 5780c5958353f7139fbde7b7cb0782d48d6de45d
Author: Jens Georg <jensg openismus com>
Date:   Fri Jul 20 17:04:25 2012 +0200

    doc: Clarify normalization of the rating
    
    This fixes https://bugzilla.gnome.org/show_bug.cgi?id=682793

 src/data/grl-media.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/data/grl-media.c b/src/data/grl-media.c
index a545e55..720006c 100644
--- a/src/data/grl-media.c
+++ b/src/data/grl-media.c
@@ -99,7 +99,8 @@ grl_media_new (void)
  * @rating: a rating value
  * @max: maximum rating value
  *
- * This method receives a rating and its scale and normalizes it
+ * This method receives a rating and its scale and normalizes it on a scale
+ * from 0...5 to match the usual five-star rating.
  *
  * Since: 0.1.5
  */