doc: add s3 options

Author: iru

use-cases/_questionnaire.md

@@ -25,6 +25,8 @@ modules, and we also offer [AWS Cloudformation templates](https://github.com/sys
     - is it an organizational cloudtrail?
     - does the cloudtrail report to an SNS? if no, could you enable it?
     - if it's not organizational, does each trail report to the same s3 bucket?
+      - if so, does that S3 bucket already have any "Event Notification System"? Is it an SNS we could subscribe to?
+      - if so, does that S3 bucket already have an "Amazon EventBridge" system activated?
 - how do you handle **IAM permissions**? would you let our Terraform scripts set them up for you, or you want to set them yourself manually? any restriction we may be aware of?
 - how do you handle **outbound newtwork connection** securization? does your infrastructure have any customized VPC/firewally setup?
 - **Deployment** type