chore: adding release notes section to PR template

Signed-off-by: Richard Case <[email protected]>

Author: richardcase

.github/PULL_REQUEST_TEMPLATE.md

@@ -34,3 +34,12 @@ Fixes #
 - [ ] includes documentation
 - [ ] adds unit tests
 - [ ] adds or updates e2e tests
+
+**Release note**:
+<!--  Write your release note:
+1. Enter your extended release note in the below block. If the PR requires additional action from users switching to the new release, include the string "action required".
+2. If no release note is required, just write "NONE".
+-->
+```release-note
+
+```