Clean up PR templates (#64)

pull_request_template.md

@@ -1,29 +1,14 @@
 ### Purpose
-_Please explain the purpose of this PR and include links to any GitHub issues that it fixes:_
+<!-- Please explain the purpose of this PR and include links to any GitHub issues that it fixes: -->
 
 - No issue is linked to this PR.
----
+
 ### Changes
-_Please list out what major changes were made in this PR to address the issue:_
+<!-- Please list out what major changes were made in this PR to address the issue: -->
 
 - No changes.
----
+
 ### Review Instructions
-_Please provide instructions about how should a reviewer test/verify the changes in this PR:_
+<!-- Please provide instructions about how should a reviewer test/verify the changes in this PR: -->
 
 - No instructions.
-
----
-### PR Checklist
-_Please ensure the following when opening a PR:_
-
-- [ ] This PR added or updated tests.
-- [ ] This PR updated docstrings or documentation.
-- [ ] This PR applied Python style guidelines, specifically followed [NumPy style docstrings](https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_numpy.html) for this repo.
-- [ ] This PR considered generalizability beyond our own use case.
-
----
-### Follow-up Discussions
-_Please append follow-up discussions and issues during the review process below:_
-
-- No follow-up discussions.