Update PR template (#284)

Author: bxsx

.github/pull_request_template.md

@@ -1,14 +1,23 @@
 ## Description of the change
 
-> Description here
+> Please include a summary of the change and which issues are fixed.
+> Please also include relevant motivation and context.
+
 ## Type of change
+
 - [ ] Bug fix (non-breaking change that fixes an issue)
 - [ ] New feature (non-breaking change that adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Maintenance
+- [ ] New release
 
 ## Related issues
 
-> Fix [#1]() 
+> Shortcut stories and GitHub issues (delete irrelevant)
+
+- Fix [SC-]
+- Fix #1
+
 ## Checklists
 
 ### Development
@@ -17,9 +26,9 @@
 - [ ] The code changed/added as part of this pull request has been covered with tests
 - [ ] All tests related to the changed code pass in development
 
-### Code review 
+### Code review
 
-- [ ]  This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
-- [ ] "Ready for review" label attached to the PR and reviewers mentioned in a comment
+- [ ] This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
+- [ ] "Ready for review" label attached to the PR and reviewers assigned
+- [ ] Issue from task tracker has a link to this pull request
 - [ ] Changes have been reviewed by at least one other engineer
-- [ ] Issue from task tracker has a link to this pull request