Update PULL_REQUEST_TEMPLATE.md (#2697)
Update PULL_REQUEST_TEMPLATE.md (#2697)

* Move Tests Pass to last, add a comment
* change Fixes line

Fixes #<issue_number_goes_here>

> It's a good idea to open an issue first for discussion.

- [ ] Tests pass (`mvn -P lint clean verify`)?
- [ ] `pom.xml` parent set to latest `shared-configuration`
- [ ] Appropriate changes to README are included in PR
- [ ] API's need to be enabled to test (tell us)
- [ ] Environment Variables need to be set (ask us to set them)

GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples