cavis/nd4j/.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)

Please review https://github.com/deeplearning4j/deeplearning4j/blob/master/CONTRIBUTING.md before opening a pull request.