[pygtk] reference: pygtk-gtktoolshell.xml: add gtk.ToolItemGroup to known implementations

[John Stowers <jstowers src gnome org>]

commit 941ede8262a1aa49d59e486f0f82ee2e3374d796
Author: Dieter Verfaillie <dieterv optionexplicit be>
Date:   Wed Mar 16 13:44:21 2011 +0100

    reference: pygtk-gtktoolshell.xml: add gtk.ToolItemGroup to known implementations

 docs/reference/pygtk-gtktoolshell.xml |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/pygtk-gtktoolshell.xml b/docs/reference/pygtk-gtktoolshell.xml
index d333aa4..b57e183 100644
--- a/docs/reference/pygtk-gtktoolshell.xml
+++ b/docs/reference/pygtk-gtktoolshell.xml
@@ -54,6 +54,7 @@
             <link linkend="class-gtktoolshell"><classname>gtk.ToolShell</classname></link>
             is implementated by 
             <link linkend="class-gtktoolbar"><classname>gtk.ToolBar</classname></link>,
+            <link linkend="class-gtktoolitemgroup"><classname>gtk.ToolItemGroup</classname></link>
         </para>
     </refsect1>