[gnome-user-docs] Explain how to add images as wallpaper

[Andre Klapper <aklapper src gnome org>]

commit 880c099bf1b21f45e4296e8a59717405481d5d0e
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat Sep 15 17:47:41 2012 +0200

    Explain how to add images as wallpaper

 gnome-help/C/look-background.page |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gnome-help/C/look-background.page b/gnome-help/C/look-background.page
index 2e6fb7d..0a64437 100644
--- a/gnome-help/C/look-background.page
+++ b/gnome-help/C/look-background.page
@@ -52,6 +52,11 @@ it to a simple color or gradient.</p>
   <item><p>Select <gui>Pictures</gui> to use one of your own photos
   from your Pictures folder. Most photo management applications
   store photos there.</p></item>
+  If you would like to use an image that is not in your Pictures folder,
+  either use <app>Files</app> by right-clicking on the image file and 
+  selecting <gui>Set as Wallpaper</gui>, or <app>Image Viewer</app> by
+  opening the image file and selecting 
+  <guiseq><gui>Image</gui><gui>Set as Desktop Background</gui></guiseq>.
   <item><p>Select <gui>Colors</gui> to just
   use a flat color or a linear gradient.</p></item>
 </list>