[marketplace][auto_insurance] automating_auto_insurance_claim_processing.ipynb issues

https://github.com/awslabs/amazon-sagemaker-examples/blob/master/aws_marketplace/using_model_packages/auto_insurance/automating_auto_insurance_claim_processing.ipynb

This notebook doesn't run end to end. It breaks with the following error:
`ClientError: An error occurred (ValidationException) when calling the CreateModel operation: Caller is not subscribed to the marketplace offering.`

Open automating_auto_insurance_claim_processing.ipynb from the linked aws_marketplace/using_model_packages/auto_insurance path and run it through the CreateModel step. Investigate the marketplace subscription prerequisite behind the reported ValidationException and determine whether the notebook can complete end to end; done means the documented workflow no longer fails at model creation.

Written by the indexing model from the issue text.