Merge branch 'cashier-document-create-stripe-customer-method' of https://github.com/driesvints/docs into driesvints-cashier-document-create-stripe-customer-method

Author: taylorotwell

billing.md

@@ -18,6 +18,8 @@
 - [Subscription Trials](#subscription-trials)
  - [With Credit Card Up Front](#with-credit-card-up-front)
  - [Without Credit Card Up Front](#without-credit-card-up-front)
+- [Customers](#customers)
+ - [Creating Customers](#create-customers)
 - [Handling Stripe Webhooks](#handling-stripe-webhooks)
  - [Defining Webhook Event Handlers](#defining-webhook-event-handlers)
  - [Failed Subscriptions](#handling-failed-subscriptions)
@@ -450,6 +452,18 @@ Once you are ready to create an actual subscription for the user, you may use th
 
  $user->newSubscription('main', 'monthly')->create($stripeToken);
 
+<a name="customers"></a>
+## Customers
+
+<a name="creating-customers"></a>
+### Creating Customers
+
+Besides creating subscriptions with a token you can also directly create a customer with a card token. This is handy when you already want to add the user as a customer in your payment provider without starting a subscription.
+
+ $user->createAsStripeCustomer($stripeToken);
+
+The Braintree equivalent is the `createAsBraintreeCustomer` method.
+
 <a name="handling-stripe-webhooks"></a>
 ## Handling Stripe Webhooks