doc: add PR template

.github/pull_request_template.md

@@ -0,0 +1,34 @@
+## Summary
+
+<!-- Give a brief description of what your PR does. -->
+
+This PR adds..
+
+## Related Issues
+
+<!-- Link issues that are related to this PR. You may link issues you think should be closed by this PR. -->
+
+Related #
+
+Closes #
+
+## Changes
+
+<!-- List the major changes made in this PR. -->
+
+- List changes here
+
+## Checklist
+
+I confirm that I have:
+
+- [ ] **Followed the
+      [Conventional Commits](https://www.conventionalcommits.org/)
+      specification** (e.g., `feat: add new feature`, `fix: correct bug`,
+      `docs: update documentation`).
+- [ ] **My PR title also follows the conventional commits specification.**
+- [ ] **Updated relevant documentation,** if necessary.
+- [ ] **Thoroughly tested my changes.**
+- [ ] **Added tests** (if applicable) and verified existing tests pass with
+      `make test`.
+- [ ] **Checked for breaking changes** and documented them, if any.

docs/contributing.org

@@ -96,3 +96,9 @@ make test FILE=./tests/plenary/api/api_spec.lua
 :CUSTOM_ID: parser
 :END:
 Parsing is done via builtin treesitter parser and the [[https://github.com/milisims/tree-sitter-org][tree-sitter-org]] grammar.
+
+**** Commits
+:PROPERTIES:
+:CUSTOM_ID: commits
+:END:
+Ensure that you follow the [[https://www.conventionalcommits.org/][Conventional Commits]] specification (e.g., =feat: add new feature=, =fix: correct bug=, =docs: update documentation=).