[gtk+] docs: Add more a reference in GtkHeaderBar

[Yosef Or Boczko <yoseforb src gnome org>]

commit 773e40ca7bdb0e54f3cae452d257f4f011a4cd1d
Author: Yosef Or Boczko <yoseforb src gnome org>
Date:   Thu Jan 23 18:28:17 2014 +0200

    docs: Add more a reference in GtkHeaderBar

 gtk/gtkheaderbar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkheaderbar.c b/gtk/gtkheaderbar.c
index 1289f16..3b9923e 100644
--- a/gtk/gtkheaderbar.c
+++ b/gtk/gtkheaderbar.c
@@ -35,7 +35,7 @@
  * SECTION:gtkheaderbar
  * @Short_description: A box with a centered child
  * @Title: GtkHeaderBar
- * @See_also: #GtkBox
+ * @See_also: #GtkBox, #GtkActionBar
  *
  * GtkHeaderBar is similar to a horizontal #GtkBox, it allows to place
  * children at the start or the end. In addition, it allows a title and