update PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,9 +4,10 @@
 ## Description
 
 Please include a summary of the change.
+By default the change will increment the patch version, to increment major or minor changes add #major or #minor to the PR description.
 
 
 ## Checklist:
 - [ ] Unit tests are added to cover the changes.
-- [ ] The changes are mentioned in the documentation
-- [ ] CHANGELOG.md is updated (by default the change will increment the patch version, to increment major or minor changes add #major or #minor to the PR description)
+- [ ] The changes are mentioned in the documentation.
+- [ ] CHANGELOG.md is updated (skip if the change is not important for the changelog).