[gtk+] GtkApplication: document icon path setup

[Ryan Lortie <desrt src gnome org>]

commit 4948516100abfbc0af8c8f16086f38c3b4c04715
Author: Ryan Lortie <desrt desrt ca>
Date:   Mon Jul 7 14:36:57 2014 -0400

    GtkApplication: document icon path setup
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722092

 gtk/gtkapplication.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index c79f80e..e77cdc4 100644
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -87,6 +87,12 @@
  * It is also possible to provide the menus manually using
  * gtk_application_set_app_menu() and gtk_application_set_menubar().
  *
+ * #GtkApplication will also automatically setup an icon search path for
+ * the default icon theme by appending "icons" to the resource base
+ * path.  This allows your application to easily store its icons as
+ * resources.  See gtk_icon_theme_add_resource_path() for more
+ * information.
+ *
  * ## A simple application ## {#gtkapplication}
  *
  * [A simple example](https://git.gnome.org/browse/gtk+/tree/examples/bp/bloatpad.c)