delete old read me

git-svn-id: https://plugins.svn.wordpress.org/remove-open-sans-font-from-wp-core/trunk@957856 b8457f37-d9ea-0310-8a92-e5e31aec5664
re upload new read me

git-svn-id: https://plugins.svn.wordpress.org/remove-open-sans-font-from-wp-core/trunk@957857 b8457f37-d9ea-0310-8a92-e5e31aec5664