updated description

git-svn-id: https://plugins.svn.wordpress.org/coming-soon/trunk@971703 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated readme description

git-svn-id: https://plugins.svn.wordpress.org/coming-soon/trunk@971707 b8457f37-d9ea-0310-8a92-e5e31aec5664