readme mod

git-svn-id: https://plugins.svn.wordpress.org/woocomerce-price-by-country/trunk@875495 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme mod

git-svn-id: https://plugins.svn.wordpress.org/woocomerce-price-by-country/trunk@875496 b8457f37-d9ea-0310-8a92-e5e31aec5664