1 files changed, 3 insertions, 0 deletions
diff --git a/README b/README
index fb18cf9..ea118ee 100644
--- a/README
+++ b/README
@@ -30,6 +30,9 @@ Methods
             cvc: '123'
         }, stripeResponseHandler);
 
+    The callback function will be given two arguments, a `status` code and a
+    `response` object.
+
   * `Epirts.card.validateCardNumber(number)`
 
     Checks that the card number appears valid and passes the Luhn check.