Adding PR template

Author: afoote-mitre

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,20 @@
+Note: Please format the pull request title like:
+"Resolves issue ###, High level description of pull request."
+
+Closes Issue ###
+
+# Summary
+Write out a concise summary of this MR.
+
+# Important Changes
+`example_file.js`
+- Cleaned code and added comments.
+- Added method to handle adding items. 
+
+# Testing
+
+Steps to manually test updated functionality, if possible
+- [ ] 1) Example test step.
+
+# Notes
+- Some additional notes about this MR.