Fix url to Amazon Cognito Identity SDK

WebApplication/2_UserManagement/README.md

@@ -97,7 +97,7 @@ The [/js/config.js][configjs] file contains settings for the user pool ID, app c
 
     Amplify Console should pick up the changes and begin building and deploying your web application.
 
-**Note:** Instead of having you write the browser-side code for managing the registration, verification, and sign in flows, we provide a working implementation in the assets you deployed in the first module. The [cognito-auth.js](../1_StaticWebHosting/website/js/cognito-auth.js) file contains the code that handles UI events and invokes the appropriate Amazon Cognito Identity SDK methods. For more information about the SDK, see the [project page on GitHub](https://github.com/aws/amazon-cognito-identity-js).
+**Note:** Instead of having you write the browser-side code for managing the registration, verification, and sign in flows, we provide a working implementation in the assets you deployed in the first module. The [cognito-auth.js](../1_StaticWebHosting/website/js/cognito-auth.js) file contains the code that handles UI events and invokes the appropriate Amazon Cognito Identity SDK methods. For more information about the SDK, see the [project page on GitHub](https://github.com/aws-amplify/amplify-js/tree/master/packages/amazon-cognito-identity-js).
 
 ## Implementation Validation
 
@@ -145,4 +145,4 @@ The [/js/config.js][configjs] file contains settings for the user pool ID, app c
 [serverless-backend]: ../3_ServerlessBackend/
 [cognito-console]: https://console.aws.amazon.com/cognito/home
 [configjs]: ../1_StaticWebHosting/website/js/config.js
-[jwt-decoder]: https://jwt.io/
+[jwt-decoder]: https://jwt.io/