chore: add issue template (#164)

Co-authored-by: Robin Salkeld <[email protected]>
Co-authored-by: seebees <[email protected]>

Author: 3 people

.github/ISSUE_TEMPLATE/amazon-dynamodb-encryption-client-issue.md

@@ -0,0 +1,26 @@
+---
+name: Amazon DynamoDB Encryption Client Issue
+about: Amazon DynamoDB Encryption Client Issue
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+### Security issue notifications
+
+If you discover a potential security issue in the Amazon DynamoDB Encryption Client we ask that you notify AWS Security via our [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting/). Please do **not** create a public GitHub issue.
+
+### Problem:
+
+A short description of what the problem is and why we need to fix it. Add reproduction steps if necessary.
+
+### Solution:
+
+A description of the possible solution in terms of DynamoDB Encryption Client architecture.
+
+### Out of scope:
+
+Is there anything the solution will intentionally NOT address?
+
+[//]: #  (NOTE: If you believe this might be a security issue, please email aws-security@amazon.com instead of creating a GitHub issue. For more details, see the AWS Vulnerability Reporting Guide: https://aws.amazon.com/security/vulnerability-reporting/ )