DOCS (hotfix): Fix duplicated S3 endpoint heading (#896)

Author: quetzalliwrites

src/content/docs/aws/services/s3.mdx

@@ -122,11 +122,10 @@ lstk aws s3 presign s3://sample-bucket/image.jpg
 You will see a generated pre-signed URL for your S3 object.
 You can use [curl](https://curl.se/) or [`wget`](https://www.gnu.org/software/wget/) to retrieve the S3 object using the pre-signed URL.
 
-## Configuring S3 Endpoint
 By default, LocalStack does not validate the signature or the expiration of pre-signed URLs.
 Check out the [Signature validation](#signature-validation) section to enable it.
 
-## Path-Style and Virtual Hosted-Style Requests
+## Configuring S3 Endpoint
 
 LocalStack supports both [Virtual-Hosted style and Path style](https://docs.aws.amazon.com/AmazonS3/latest/userguide/VirtualHosting.html) S3 requests.
 AWS recommends Virtual-Hosted style addressing, and some AWS regions do not support path-style requests at all.