updated links in README

Following patch made by Chris Cormack.

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>

README

@@ -1,11 +1,11 @@
-Koha 3 - the next-generation release of the award-winning Koha open-source
-integrated library system.
+Koha is a free software integrated library system.
 
-Koha is distributed under the GNU GPL. Please read the file LICENSE for
-more details.
+Koha is distributed under the GNU GPL version 2 or later.
+Please read the file LICENSE for more details.
 
-To install or upgrade Koha, please see the INSTALL file appropriate to your platform.
+To install or upgrade Koha, please see the INSTALL file appropriate
+to your platform.
 
-Report bugs at http://bugs.koha.org/
+Report bugs at http://bugs.koha-community.org/
 
-Visit the Koha Project website at http://www.koha.org/
+Visit the Koha Project website at http://www.koha-community.org/