Update readme

git-svn-id: https://plugins.svn.wordpress.org/wider-admin-menu/trunk@971933 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme

git-svn-id: https://plugins.svn.wordpress.org/wider-admin-menu/trunk@971937 b8457f37-d9ea-0310-8a92-e5e31aec5664