Slightly update PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,17 +1,14 @@
 # What does this PR do?
 
-Closes # (issue)
+In short, provide a summary of what this PR does and why. Usually, the relevant context should be present in a linked issue.
+
+- [ ] Addresses issue (#issue)
 
 ## Feature/Issue validation/testing/test plan
 
-Please describe the tests that you ran to verify your changes and relevant result summary. Provide instructions so it can be reproduced.
-Please also list any relevant details for your test configuration or test plan.
-
-- [ ] Test A
-Logs for Test A
-
-- [ ] Test B
-Logs for Test B
+Please describe:
+ - tests you ran to verify your changes with result summaries.
+ - provide instructions so it can be reproduced.
 
 
 ## Sources
@@ -20,12 +17,10 @@ Please link relevant resources if necessary.
 
 
 ## Before submitting
-- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
-- [ ] Did you read the [contributor guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
-      Pull Request section?
-- [ ] Was this discussed/approved via a Github issue? Please add a link
-      to it if that's the case.
-- [ ] Did you make sure to update the documentation with your changes?
-- [ ] Did you write any new necessary tests?
 
-Thanks for contributing 🎉!
+- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
+- [ ] Ran pre-commit to handle lint / formatting issues.
+- [ ] Read the [contributor guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
+      Pull Request section?
+- [ ] Updated relevant documentation.
+- [ ] Wrote necessary unit or integration tests.