[gtk+] gtk-demo: Move the transparent example under Overlay

[Matthias Clasen <matthiasc src gnome org>]

commit 6bf2e9e7a773f6848788771f262737f5904db0b0
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jul 29 19:15:08 2015 -0400

    gtk-demo: Move the transparent example under Overlay

 demos/gtk-demo/transparent.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/demos/gtk-demo/transparent.c b/demos/gtk-demo/transparent.c
index f156ff2..dbd94b7 100644
--- a/demos/gtk-demo/transparent.c
+++ b/demos/gtk-demo/transparent.c
@@ -1,4 +1,4 @@
-/* Transparency
+/* Overlay/Transparency
  *
  * Use transparent background on GdkWindows to create a shadow effect on a GtkOverlay widget.
  */