readme.txt update

git-svn-id: https://plugins.svn.wordpress.org/easy-social-icons/trunk@937055 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt update

git-svn-id: https://plugins.svn.wordpress.org/easy-social-icons/trunk@937058 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt update

git-svn-id: https://plugins.svn.wordpress.org/easy-social-icons/trunk@937059 b8457f37-d9ea-0310-8a92-e5e31aec5664