[gtk+] Add links to the migration guide

[Matthias Clasen <matthiasc src gnome org>]

commit 57d5328685a0e0ae1f8e4088ee1f9c1d8fd820d8
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 8 19:07:46 2011 -0500

    Add links to the migration guide

 README.in |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index a444271..5f5acb8 100644
--- a/README.in
+++ b/README.in
@@ -25,3 +25,17 @@ Installation
 ============
 
 See the file 'INSTALL'
+
+
+Release notes for 3.0
+=====================
+
+* GTK+ 3 is a major new version of GTK+, which is parallel installable
+  with GTK+ 2.x. For information about porting applications from GTK+ 2.x
+  to GTK+ 3, see the file:
+
+  docs/reference/gtk/html/migrating.html
+
+  Or online at:
+
+  http://library.gnome.org/devel/gtk/2.99/migrating.html