[totem] Add a note in the TotemVideoList documentation about the totem property

[Philip Withnall <pwithnall src gnome org>]

commit b87d5fafab5866a9d3895c8c86081cec9095a322
Author: Philip Withnall <philip tecnocode co uk>
Date:   Wed Jun 30 09:34:21 2010 +0100

    Add a note in the TotemVideoList documentation about the totem property
    
    It's required to be set for the TotemVideoList to work.

 src/totem-video-list.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/totem-video-list.c b/src/totem-video-list.c
index b5c61e2..4f538e5 100644
--- a/src/totem-video-list.c
+++ b/src/totem-video-list.c
@@ -35,6 +35,8 @@
  *
  * #TotemVideoList is a #GtkTreeView designed for listing videos by their thumbnails using #TotemCellRendererVideo.
  * It supports tooltips, loading the videos by activating tree view rows, and #GtkUIManager actions in the popup menu.
+ *
+ * Note that it requires #TotemVideoList:totem to be set to an instance of #TotemObject to work.
  **/
 
 #include "config.h"