[glib/new-gsettings] Document the extension point

[Matthias Clasen <matthiasc src gnome org>]

commit dfd077e354ea0e6a3dae5a4f7189d6594f17a8bd
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Apr 14 21:42:23 2010 -0400

    Document the extension point

 docs/reference/gio/gio-sections.txt |    1 +
 gio/gsettingsbackend.h              |    5 +++++
 2 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gio/gio-sections.txt b/docs/reference/gio/gio-sections.txt
index 23238a1..84d87a5 100644
--- a/docs/reference/gio/gio-sections.txt
+++ b/docs/reference/gio/gio-sections.txt
@@ -2080,6 +2080,7 @@ G_TYPE_FILE_DESCRIPTOR_BASED
 <FILE>gsettingsbackend</FILE>
 <TITLE>GSettingsBackend</TITLE>
 GSettingsBackend
+G_SETTINGS_BACKEND_EXTENSION_POINT_NAME
 g_settings_backend_get_with_context
 g_settings_backend_supports_context
 g_settings_backend_create_tree
diff --git a/gio/gsettingsbackend.h b/gio/gsettingsbackend.h
index 87e6407..f4756d1 100644
--- a/gio/gsettingsbackend.h
+++ b/gio/gsettingsbackend.h
@@ -40,6 +40,11 @@ G_BEGIN_DECLS
 #define G_SETTINGS_BACKEND_GET_CLASS(inst)                  (G_TYPE_INSTANCE_GET_CLASS ((inst),                      \
                                                              G_TYPE_SETTINGS_BACKEND, GSettingsBackendClass))
 
+/**
+ * G_SETTINGS_BACKEND_EXTENSION_POINT_NAME:
+ *
+ * Extension point for #GSettingsBackend functionality.
+ **/
 #define G_SETTINGS_BACKEND_EXTENSION_POINT_NAME "gsettings-backend"
 
 /**