Update

3_Route53Configuration/README.md

@@ -36,7 +36,7 @@ You need one domain configurations in each Region with `*.`
 **High-level instructions**
 
 Navigate over to the [`API Gateway`](https://eu-west-1.console.aws.amazon.com/apigateway/home?region=eu-west-1#/apis) in Ireland region, and create `Custom Domain Names`.
-* Choose `REST`
+* Choose `REST` (if there is no "REST" option, choose "HTTP")
 * Domain Name: `*.<subdomain>.multi-region.xyz`
 * Choose `TLS 1.2`
 * Choose `Regional` in the Endpoint Configuration