Updated the readme info

git-svn-id: https://plugins.svn.wordpress.org/beautiful-taxonomy-filters/trunk@1024206 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated the readme infowith a new screenshot

git-svn-id: https://plugins.svn.wordpress.org/beautiful-taxonomy-filters/trunk@1024207 b8457f37-d9ea-0310-8a92-e5e31aec5664