[glib] Add proxy extension point to overview docs

[Matthias Clasen <matthiasc src gnome org>]

commit ef16ea4616b6d47b533474dd163ae23add7037bc
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 21 22:22:25 2010 -0400

    Add proxy extension point to overview docs
    
    The 'Extending GIO' section is supposed to list all extension
    points, so add the proxy extension point here.

 docs/reference/gio/overview.xml |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gio/overview.xml b/docs/reference/gio/overview.xml
index a2954b6..0d5b057 100644
--- a/docs/reference/gio/overview.xml
+++ b/docs/reference/gio/overview.xml
@@ -528,5 +528,17 @@
         by dconf.
       </para>
    </formalpara>
+
+   <formalpara>
+     <title>G_PROXY_EXTENSION_POINT_NAME</title>
+
+     <para>
+       Allows to provide implementations for network proxying.
+       Implementations of this extension point must provide the
+       #GProxy interface, and must be named after the network
+       protocol they are proxying.
+     </para>
+   </formalpara>
+
   </chapter>
 </part>