Deleting buggy Readme

git-svn-id: https://plugins.svn.wordpress.org/wp-last-modified/trunk@751025 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updating Readme

git-svn-id: https://plugins.svn.wordpress.org/wp-last-modified/trunk@751026 b8457f37-d9ea-0310-8a92-e5e31aec5664