anchor.diff:  
   * You already went through the Getting started tutorial
   * You have MySQL installed and have created a killbill database
  -* You have http://curl.haxx.se/[cURL] installed. This is only to be able to run the examples from this tutorial. In practice, your application will use one of our http://killbill.io/userguide/[client libraries]
  +* You have http://curl.haxx.se/[cURL] installed. This is only to be able to run the examples from this tutorial. In practice, your application will use one of our http://docs.killbill.io/[client libraries]
   
   [[setup]]
   == Setup
  
positive.code: 
  Kill Bill will return a 302 Found on success. The customer should be redirected to the url specified in the Location header, e.g. https://www.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-20G53990M6953444J.
  
  Follow the link to log to the paypal site: On the PayPal site, the user will be guided through the approval process to create a token for your website.
  
  Once that step is completed, the customer comes back from the PayPal flow, you can now create the payment method in Kill Bill by specifyfing the token that was returned in the setup-checkout step (e.g. EC-20G53990M6953444J). Note that this token is now associated to the customer who was redirected to Paypal and accepted the agreement.
  
  
negative.code: ----
  
  If you load the account page in Kaui, you should now see the two payment methods.
  
  A demo of that integration is available https://github.com/killbill/killbill-paypal-demo[here].
  
  === Processing payments
  
  