Updating Readme

git-svn-id: https://plugins.svn.wordpress.org/simple-custom-css/trunk@891689 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updating Readme

git-svn-id: https://plugins.svn.wordpress.org/simple-custom-css/trunk@891690 b8457f37-d9ea-0310-8a92-e5e31aec5664