Create PULL_REQUEST_TEMPLATE.md

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,30 @@
+#### Types of change
+
+<!--
+Put an `x` in the boxes that apply_
+-->
+
+- [ ] Bugfix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Other (documentation etc)
+
+#### Pull request checklist
+
+ - [ ] Add functionality
+ - [ ] Add tests
+ - [ ] Update documentation in `man`
+ - [ ] Update website documentation
+
+***
+
+#### Proposed changes
+<!-- 
+ Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. 
+ If it fixes a bug or resolves a feature request, be sure to link to that issue. 
+ If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution,
+ you did and what alternatives you considered etc.
+-->
+
+- 
+-