Improve PR template (#2626)

Author: HappyAmazonian

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,3 +4,31 @@ Brief description of what this PR is about
 
 - If this change is a backward incompatible change, why must this change be made?
 - Interesting edge cases to note here
+
+## Type of change
+
+Please delete options that are not relevant.
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] This change requires a documentation update
+
+## Checklist:
+
+- [ ] Have you [manually built the docker image](https://github.com/deepjavalibrary/djl-serving/blob/master/serving/docker/README.md#build-docker-image) and verify the change?
+- [ ] Have you run related tests? Check [how to set up the test environment here](https://github.com/deepjavalibrary/djl-serving/blob/master/.github/workflows/integration_execute.yml#L72); One example would be `pytest tests.py -k "TestCorrectnessLmiDist"  -m "lmi_dist"`
+- [ ] Have you added tests that prove your fix is effective or that this feature works? 
+- [ ] Has code been commented, particularly in hard-to-understand areas?
+- [ ] Have you made corresponding changes to the documentation?
+
+## Feature/Issue validation/testing
+
+Please describe the Unit or Integration 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.
+
+- [ ] Test A
+Logs for Test A
+
+- [ ] Test B
+Logs for Test B