change screenshot 1 and screenshot 2

git-svn-id: https://plugins.svn.wordpress.org/yith-woocommerce-wishlist/trunk@1041866 b8457f37-d9ea-0310-8a92-e5e31aec5664
revert screenshot

git-svn-id: https://plugins.svn.wordpress.org/yith-woocommerce-wishlist/trunk@1041867 b8457f37-d9ea-0310-8a92-e5e31aec5664
change live demo link

git-svn-id: https://plugins.svn.wordpress.org/yith-woocommerce-wishlist/trunk@1056832 b8457f37-d9ea-0310-8a92-e5e31aec5664