fix missing file

git-svn-id: https://plugins.svn.wordpress.org/ultimate-wp-query-search-filter/trunk@831594 b8457f37-d9ea-0310-8a92-e5e31aec5664
change readme.txt

git-svn-id: https://plugins.svn.wordpress.org/ultimate-wp-query-search-filter/trunk@831596 b8457f37-d9ea-0310-8a92-e5e31aec5664