cavis/.github/PULL_REQUEST_TEMPLATE.md

## What changes were proposed in this pull request?

(Please fill in changes proposed in this fix)

## How was this patch tested?

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)

## Quick checklist

The following checklist helps ensure your PR is complete:

- [ ] Eclipse Contributor Agreement signed, and signed commits - see [IP Requirements](https://deeplearning4j.org/eclipse-contributors) page for details
- [ ] Reviewed the [Contributing Guidelines](https://github.com/eclipse/deeplearning4j/blob/master/CONTRIBUTING.md) and followed the steps within.
- [ ] Created tests for any significant new code additions.
- [ ] Relevant tests for your changes are passing.