delete readme for update

git-svn-id: https://plugins.svn.wordpress.org/free-counter/trunk@1056846 b8457f37-d9ea-0310-8a92-e5e31aec5664
upload updated readme

git-svn-id: https://plugins.svn.wordpress.org/free-counter/trunk@1056847 b8457f37-d9ea-0310-8a92-e5e31aec5664