doc: Update PR template

.github/pull_request_template.md

@@ -1,6 +1,7 @@
 ## Motivation
 
-Describe what is the motivation behind the proposed changes. If possible reference the current solution/state of affairs.
+Describe what is the motivation behind the proposed changes.
+If possible reference the current solution/state of affairs.
 
 ## Summary
 
@@ -15,11 +16,14 @@ List related changes from other PRs (if any).
 - Describe how to check introduced code changes manually. Simple `main.go` which takes advantage of the introduced changes is preferred (if possible and useful).
 - Take care of test coverage on unit, integration or even end-to-end levels.
 
-## Checklist
+## Release Notes
 
-- [ ] Include this change in Release Notes?
-  - If yes, write 1-3 sentences about the changes here and explicitly list all changes that can surprise our users.
-- [ ] Are these changes required to be in sync with the API? Example of such can be extending a `manifest.Object` with a new field.
-It won't be usable until Nobl9 platform version is rolled out which can handle this field.
-  - If yes, you **MUST NOT** create an official release, instead, use a pre-release version, like `v1.1.0-rc1`.
-  - If the changes are independent of Nobl9 platform version, you can release an offical version, like `v1.1.0`.
+If this change should be part of the Release Notes,
+**replace this entire paragraph** with 1-3 sentences about the changes.
+Otherwise, you **MUST** remove this section entirely.
+
+## Breaking Changes
+
+Does this PR contain any breaking changes?
+If so **replace this entire paragraph** with a description of these changes.
+Otherwise, you **MUST** remove this section entirely.