refactor(pull-request-template): refactor pull request template for o…

…rigami.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,29 @@
-IMPORTANT NOTES (please read, then delete):
+<!--- Provide a general, concise summary of your changes in the Title above 
+      The title should start with Fix #issue: (if applicable) followed by a one-line summary.-->
 
-* The PR title should start with "Fix #bugnum: " (if applicable), followed by a clear one-line present-tense summary of the changes introduced in the PR. 
+## Description
+<!--- Describe your changes in detail -->
 
-* Please make sure to mention "#bugnum" somewhere in the description of the PR. This enables Github to link the PR to the corresponding bug.
+## Related Issue
+<!--- If suggesting a new feature or change, please discuss it in an issue first -->
+<!--- If fixing a bug, mention Fixes #issue here -->
 
+## Reviewers
+<!--- @mentions of the person/people responsible for reviewing proposed changes. -->
+
+## Types of changes
+<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+- [ ] Bug fix (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 change)
+- [ ] Other
+
+## Screenshots (if appropriate):
+<!--- Before the change and after the change. -->
+
+## Checklist:
+<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
+<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+- [ ] My code follows the code style (modified PEP8) of this project.
+- [ ] I have updated the documentation accordingly.
+- [ ] The code has been tested locally.