Create PULL_REQUEST_TEMPLATE.md

Based on the case here: #9043

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,5 +1,6 @@
 Submitter Checklist:
 
+- [ ] Wrote/updated a title so that release maintainers would not overlook the PR and commit. 
 - [ ] Submitted a [ticket](https://github.com/brave/browser-laptop/issues) for my issue if one did not already exist.
 - [ ] Used Github [auto-closing keywords](https://help.github.com/articles/closing-issues-via-commit-messages/) in the commit message.
 - [ ] Added/updated tests for this change (for new code or code which already has tests).
@@ -13,9 +14,6 @@ Reviewer Checklist:
 
 Tests
 
-
 - [ ] Adequate test coverage exists to prevent regressions
 - [ ] Tests should be independent and work correctly when run individually or as a suite [ref](https://github.com/brave/browser-laptop/wiki/Code-Guidelines#test-dependencies)
 - [ ] New files have MPL2 license header
-
-