Fixed readme, added license info

git-svn-id: https://plugins.svn.wordpress.org/leaguemanager/trunk@900233 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix readme, copied wrong version...

git-svn-id: https://plugins.svn.wordpress.org/leaguemanager/trunk@900234 b8457f37-d9ea-0310-8a92-e5e31aec5664