Merge pull request #434 from wordpress-mobile/add/github-pull-request-template

Add the GitHub pull request template

Author: rynaardb

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,8 @@
+## What does it do?
+
+## Checklist before requesting a review
+
+- [ ] Run `bundle exec rubocop` to test for code style violations and recommendations
+- [ ] Add Unit Tests (aka `specs/*_spec.rb`) if applicable
+- [ ] Run `bundle exec rspec` to run the whole test suite and ensure all your tests pass
+- [ ] Make sure you added an entry in [the `CHANGELOG.md` file](https://github.com/wordpress-mobile/release-toolkit/blob/trunk/CHANGELOG.md#trunk) to describe your changes under the approprioate existing `###` subsection of the existing `## Trunk` section.