Merge pull request #2061 from segmentio/rajul/amazon3-supported-regions

Updated Amazon S3 Docs with supported regions warning

Author: stayseesong

src/connections/storage/catalog/amazon-s3/index.md

@@ -166,6 +166,9 @@ Segment recommends doing this as a best practice. The following policy strictly
 
 ## Region
 
+> warning ""
+> The Amazon S3 destination only supports workspaces in the US region. Workspaces outside of the US can't connect to this destination. If you wish to connect to a different region use Segment's new [AWS S3 destination](https://segment.com/docs/connections/storage/catalog/aws-s3/) instead.
+
 Segment infers the region of your bucket when data is copied to it, so you don't need to specify a bucket region in your configuration. If you're using VPC Endpoints for your S3 bucket, make sure you configure the endpoint in the same region as your bucket. You can find more information on this in the AWS S3 docs [here](http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-endpoints-s3.html).
 
 ## Custom Path Prefix