readme.txt updated

git-svn-id: https://plugins.svn.wordpress.org/flyzoo/trunk@898003 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixed readme.txt

git-svn-id: https://plugins.svn.wordpress.org/flyzoo/trunk@898005 b8457f37-d9ea-0310-8a92-e5e31aec5664