readme 2.0 updated tags

git-svn-id: https://plugins.svn.wordpress.org/admin-collapse-subpages/trunk@874386 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme 2.0 updated

git-svn-id: https://plugins.svn.wordpress.org/admin-collapse-subpages/trunk@874387 b8457f37-d9ea-0310-8a92-e5e31aec5664