Change encoding to UTF-8 for doc/styles.css

Author: jwakely

doc/styles.css

@@ -79,8 +79,8 @@ ul {
 }
 
 /*
-© Copyright Housemarque Oy 2002
-© Copyright Paul Mensonides 2002
+Copyright (c) 2002 Housemarque Oy
+Copyright (c) 2002 Paul Mensonides
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)