bump version to 3.1b1
diff --git a/README b/README
index ffa3c3d..6263ee2 100644
--- a/README
+++ b/README
@@ -1,5 +1,5 @@
-This is Python version 3.1 alpha 2
-==================================
+This is Python version 3.1 beta 1
+=================================
 
 Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
 Python Software Foundation.