Updated the readme.txt


git-svn-id: https://plugins.svn.wordpress.org/mijireh-checkout-for-ithemes-exchange/trunk@751335 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated the readme.txt

git-svn-id: https://plugins.svn.wordpress.org/mijireh-checkout-for-ithemes-exchange/trunk@751336 b8457f37-d9ea-0310-8a92-e5e31aec5664