add lex v2 workshop link

Author: spenlep-amzn

Diff for: samTemplates/amazon-connect-interactive-messages-example-lex-v2/README.md

@@ -167,6 +167,7 @@ This sample code is made available under the MIT-0 license. See the [LICENSE](LI
 ## Additional Resources
 
 - [Interactive Messages Documentation](https://docs.aws.amazon.com/connect/latest/adminguide/interactive-messages.html)
+- [Interactive Messages LexV2 Workshop (unofficial)](https://catalog.us-east-1.prod.workshops.aws/workshops/638d00f5-2248-488f-b7ca-903e8b966bf8/en-US)
 - [AWS Lambda Documentation](https://docs.aws.amazon.com/lambda/)
 - [Amazon Connect Documentation](https://docs.aws.amazon.com/connect/)
 - [Amazon Lex Documentation](https://docs.aws.amazon.com/lex/)