Updated Readme.txt

git-svn-id: https://plugins.svn.wordpress.org/stripe/trunk@946202 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated Readme.txt

git-svn-id: https://plugins.svn.wordpress.org/stripe/trunk@946205 b8457f37-d9ea-0310-8a92-e5e31aec5664