delete old readme

git-svn-id: https://plugins.svn.wordpress.org/wp-better-categories/trunk@743578 b8457f37-d9ea-0310-8a92-e5e31aec5664
readm

git-svn-id: https://plugins.svn.wordpress.org/wp-better-categories/trunk@743581 b8457f37-d9ea-0310-8a92-e5e31aec5664