Updated readme

git-svn-id: https://plugins.svn.wordpress.org/show-content-only/trunk@990318 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme

git-svn-id: https://plugins.svn.wordpress.org/show-content-only/trunk@990319 b8457f37-d9ea-0310-8a92-e5e31aec5664