read me changed

git-svn-id: https://plugins.svn.wordpress.org/tt-sidebar-login-widget/trunk@816378 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme changed

git-svn-id: https://plugins.svn.wordpress.org/tt-sidebar-login-widget/trunk@816379 b8457f37-d9ea-0310-8a92-e5e31aec5664