Update pull-request-template.md

Author: joelhawksley

.github/pull-request-template.md

@@ -6,4 +6,6 @@
 
 <!-- Describe your thought process in making these changes. List any tradeoffs you made. Describe any alternative approaches you considered and why you discarded them. -->
 
-### Anything you want to highlight for special attention from reviewers?
+### Anything you want to highlight for special attention from reviewers?
+
+<!-- Performance/security implications, reasoning for lack of test coverage, etc -->