IDP-608 Update pull request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,14 +1,13 @@
-
 <!-- Please fill out any relevant sections and remove those that don't apply -->
-## Motivation
-<!-- Why was this pull request needed? -->
+
 ## Description of changes
 <!-- What was changed in this pull request? -->
+
 ## Breaking changes
 <!-- What breaking changes were added (if any) and how are they addressed? -->
+
 ## Additional checks
 <!-- Please check what applies. Note that some of these are not hard requirements but merely serve as information for reviewers. -->
+
 - [ ] Updated the documentation of the project to reflect the changes
 - [ ] Added new tests that cover the code changes
-- [ ] Fits CONTRIBUTING.md
-