chore: add PR template

Author: YaroSpace

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,34 @@
+## Description
+
+Briefly describe what this PR does
+
+> [!NOTE]
+> Please open your PR against `develop` branch.  It will merged into develop and in ~5-7 days merged into main 
+as part of `Weekly updates PR`.
+
+## Type of Change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Documentation update
+- [ ] Refactoring
+- [ ] Tree-sitter grammar change
+
+## Checklist
+
+- [ ] I have read the [CONTRIBUTING.md](../CONTRIBUTING.md) guidelines
+- [ ] Code follows the project style (run `./scripts/lint.sh check-code`)
+- [ ] Tests pass locally (`make test`)
+- [ ] Documentation is updated (if applicable)
+- [ ] Docs follow the style guide (run `./scripts/lint.sh check-docs`)
+
+### If this PR includes tree-sitter grammar changes:
+
+- [ ] Updated version in `lua/tree-sitter/tree-sitter.json`
+- [ ] Built tree-sitter (`tree-sitter generate && tree-sitter build`)
+- [ ] Verified no parse errors in HTTP files
+- [ ] Did NOT auto-update tree snapshots (only update when explicitly requested)
+
+## Related Issues
+
+Link any related issues: Fixes #123, Closes #456