Update LICENSE for Readme.md

LICENSE

@@ -6,7 +6,7 @@ Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,
               2010,2011,2012
               The Hamlib Group
 
-See the included README file for more information on Hamlib and the Hamlib
+See the included README.md file for more information on Hamlib and the Hamlib
 Project or visit http://www.hamlib.org for documentation and links to the
 source code of Hamlib.