Typo correction

[RajasGujarathi]

The document Setting up VPC endpoints for AWS CloudFormation under the section Before you begin mentions

If you use CloudFormation to create resources in a VPC with a VPC endpoint, you might need to modify your IAM endpoint policy so that it permits access to certain S3 buckets.

I feel it should be VPC endpoint policy instead of IAM endpoint policy

Please let me know if my interpretation of the statement is correct ❓

[joshbean]

Closing this issue or pull request in advance of archiving this repo. For more information about the decision to archive this repo (and others in the 'awsdocs' org), see the announcement on the AWS News Blog.