update url references

README.md

@@ -7,7 +7,7 @@ This custom skill is a demo store that showcases how to use Amazon Pay with your
 Before you start working on this skill, you will need to create the following accounts:
 *  [Amazon Developer Account](http://developer.amazon.com/alexa)
 *  [Amazon Web Services Account](http://aws.amazon.com/)
-*  [Amazon Pay Merchant Account](https://pay.amazon.com/us)
+*  [Amazon Pay Merchant Account](https://pay.amazon.com/signup)
 *  [Amazon Pay Sandbox Test Account](https://www.youtube.com/watch?v=m5teEFRZB8A)
 
 ## Setting Up the Demo

lambda/custom/config.js

@@ -2,7 +2,7 @@
     To run the skill, the minimum values you need configure are: sellerId, sandboxCustomerEmailId, and bucketName
 
     A detailed list of attribute descriptions can be found here:
-    https://developer.integ.amazon.com/docs/amazon-pay/amazon-pay-apis-for-alexa.html    
+    https://developer.amazon.com/docs/amazon-pay/amazon-pay-apis-for-alexa.html    
 **/
 
 'use strict';

lambda/custom/error-handler.js

@@ -4,7 +4,7 @@ const config = require( 'config' );
 
 /**
 	A detailed list of all payment declines and processing errors can be found here:
-	https://developer.integ.amazon.com/docs/amazon-pay/payment-declines-and-processing-errors.html
+	https://developer.amazon.com/docs/amazon-pay/payment-declines-and-processing-errors.html
 **/