feat: add Pull Request template for new PRs (anthropics#235)

Author: PedramNavid

.github/pull_request_template.md

@@ -0,0 +1,42 @@
+# Pull Request
+
+## Description
+
+<!-- Provide a clear and detailed description of your changes. -->
+<!-- For cookbook contributions, explain what the cookbook demonstrates and why it's valuable. -->
+
+## Type of Change
+
+<!-- Check all that apply by replacing [ ] with [x] -->
+
+- [ ] New cookbook
+- [ ] Bug fix (fixes an issue in existing cookbook)
+- [ ] Documentation update
+- [ ] Code quality improvement (refactoring, optimization)
+- [ ] Dependency update
+- [ ] Other (please describe):
+
+## Cookbook Checklist (if applicable)
+
+<!-- For new cookbooks or significant updates to existing ones -->
+
+- [ ] Cookbook has a clear, descriptive title
+- [ ] Includes a problem statement or use case description
+- [ ] Code is well-commented and easy to follow
+- [ ] Includes expected outputs or results
+
+## Testing
+
+<!-- Describe how you tested your changes -->
+
+- [ ] I have tested this cookbook/change locally
+- [ ] All cells execute without errors
+
+## Additional Context
+
+<!-- Add any other context, screenshots, or information about the pull request here -->
+<!-- Link to related issues, documentation, or discussions -->
+
+---
+
+**Note:** Pull requests that do not follow these guidelines or lack sufficient detail may be closed. This helps us maintain high-quality, useful cookbooks for the community. If you're unsure about any requirements, please open an issue to discuss before submitting a PR.