[gtk+] Add gdk_drag_context_manage_dnd to the docs

[Matthias Clasen <matthiasc src gnome org>]

commit 105f9acfdf28db552c9b7b2088ae87b345d7b70c
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 20 22:44:29 2016 -0400

    Add gdk_drag_context_manage_dnd to the docs

 docs/reference/gdk/gdk3-sections.txt |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gdk/gdk3-sections.txt b/docs/reference/gdk/gdk3-sections.txt
index bdee96b..268b497 100644
--- a/docs/reference/gdk/gdk3-sections.txt
+++ b/docs/reference/gdk/gdk3-sections.txt
@@ -1005,6 +1005,7 @@ gdk_drag_context_get_dest_window
 gdk_drag_context_get_protocol
 gdk_drag_context_get_drag_window
 gdk_drag_context_set_hotspot
+gdk_drag_context_manage_dnd
 
 <SUBSECTION Standard>
 GDK_DRAG_CONTEXT