Added PR template file in github. and added PR Template section in contributions.md file

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,19 @@
+## Pull Request Template for OCaml Cookbook Contributions
+
+#### Checklist
+Ensure the following are addressed before submitting your PR:
+
+1. **Real-World Usefulness**:
+   - [ ] Does the task address a practical need in real-world application development?
+
+2. **Code Quality**:
+   - [ ] Is the code production-ready, safe, and free of potential security issues?
+   - [ ] Does the code avoid uncaught exceptions or other potential pitfalls?
+
+3. **Standard Library and Packages**:
+   - [ ] For tasks using the Standard Library: Does this recipe provide value beyond what an LLM could easily generate?
+   - [ ] For tasks using a package: Does this recipe implicitly recommend the package for production use?
+
+4. **Recipe Redundancy**:
+   - [ ] Does this recipe duplicate an existing task? If so, does it add value by showing differences between packages or approaches?
+

CONTRIBUTING.md

@@ -28,6 +28,7 @@ We've provided a list of community-driven content below. When adding content to
 - [Recurring Events](#content-recurring-event)
 - [Upcoming Events](#content-upcoming_event)
 - [The OCaml Changelog](#content-changelog)
+- [PR Template](#content-cookbook)
 
 The following sections give more details on how to contribute to each.
 
@@ -179,6 +180,7 @@ The Changelog covers developments across:
 - [OCaml Infrastructure](https://infra.ocaml.org/)
 - [OCaml.org itself](https://ocaml.org/)
 
+
 #### Purpose and Audience
 
 The primary audience for the Changelog is OCaml users. Content should focus on changes, updates, and news that directly impact users of OCaml and its ecosystem. 
@@ -207,6 +209,34 @@ To contribute a new post to the Changelog:
 4. Write the post content, focusing on how the news or change affects OCaml users.
 5. Submit a pull request with your new file.
 
+### <a name="content-cookbook"></a>OCaml Cookbook Recipe Review Checklist
+
+#### Guidelines for New Recipes
+
+When contributing new recipes to the OCaml Cookbook, please adhere to the following:
+
+1. **Task Selection**:
+   - Focus on practical, reusable tasks relevant to a wide audience.
+   - Ensure the task demonstrates idiomatic OCaml usage.
+   - Avoid tasks that are overly trivial or highly specific to niche cases.
+
+2. **Code Standards**:
+   - Write clear, idiomatic OCaml code.
+   - Ensure the code compiles without errors or warnings.
+   - Use standard OCaml libraries and tools wherever possible.
+
+3. **Evaluation Criteria**:
+   - Does the recipe address a useful real-world task?
+   - Is the code ready for production use?
+   - If using a package, does it implicitly recommend the package for production?
+   - Avoid duplicating existing recipes unless demonstrating package differences.
+
+4. **Submission Process**:
+   - Link your PR to the relevant issue or discussion thread.
+   - Use the provided PR template to ensure all guidelines are met.
+
+Following these guidelines will help us maintain a high-quality and consistent OCaml Cookbook. 
+
 ## Git and GitHub Workflow
 
 The preferred workflow for contributing to a repository is to fork the main repository on GitHub, clone, and develop on a new branch.