Updated "getting help" section (#1989)

README.md

@@ -97,9 +97,9 @@ tableTwo
 Please use these community resources for getting help. We use the GitHub issues
 for tracking bugs and feature requests.
 
-* Ask a question on [StackOverflow](http://stackoverflow.com/) and tag it with the [`aws-sdk-go`](http://stackoverflow.com/questions/tagged/aws-sdk-go) tag.
-* Open a support ticket with [AWS Support](http://docs.aws.amazon.com/awssupport/latest/user/getting-started.html).
+* Ask us a [question](https://github.com/aws/aws-sdk-go-v2/discussions/new?category=q-a) or open a [discussion](https://github.com/aws/aws-sdk-go-v2/discussions/new?category=general).
 * If you think you may have found a bug, please open an [issue](https://github.com/aws/aws-sdk-go-v2/issues/new/choose).
+* Open a support ticket with [AWS Support](http://docs.aws.amazon.com/awssupport/latest/user/getting-started.html).
 
 This SDK implements AWS service APIs. For general issues regarding the AWS services and their limitations, you may also take a look at the [Amazon Web Services Discussion Forums](https://forums.aws.amazon.com/).