Merge pull request #1130 from cmu-delphi/pr_template_update

Update PULL_REQUEST_TEMPLATE.md

Author: krivard

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,14 +1,14 @@
-closes <!--list issues closed by this PR -->
+closes|addresses <!--list issues closed or partially-addressed by this PR -->
 
-**Prerequisites**:
+### Summary:
+
+<!--
+  describe what this PR changes
+-->
+
+### Prerequisites:
 
 - [ ] Unless it is a documentation hotfix it should be merged against the `dev` branch
 - [ ] Branch is up-to-date with the branch to be merged with, i.e. `dev`
 - [ ] Build is successful
 - [ ] Code is cleaned up and formatted
-
-### Summary
-
-<!--
-  describe what this PR changes
--->