Create CONTRIBUTING.md

Author: raj713335

CONTRIBUTING.md

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+# Contributing to Low Level Design LLD Using Python
+
+Welcome to the Low Level Design LLD Using Python project!
+Thank you for taking the time to contribute. We’re excited to collaborate with fellow engineers and learners to make this a world-class resource for system design.
+
+
+## How to Contribute
+
+### 1. Fork the Repository
+
+Click the **Fork** button in the top right corner of this repo to create your copy.
+
+### 2. Clone Your Fork
+
+```bash
+$ git clone https://github.com/raj713335/Low_Level_Design_LLD_Using_Python.git
+$ cd Low_Level_Design_LLD_Using_Python
+````
+
+### 3. Create a Feature Branch
+
+```bash
+$ git checkout -b feature/your-feature-name
+```
+
+### 4. Make Your Changes
+
+* Follow the existing folder and naming conventions.
+* Keep your code clean, modular, and well-documented.
+* If adding a new algorithm:
+
+  * Place it in the appropriate section.
+  * Include comments and usage examples.
+* If updating documentation:
+
+  * Maintain consistent formatting.
+  * Use Markdown best practices.
+
+### 5. Test Your Contribution
+
+Run your code and verify it works correctly. Add edge cases and examples where appropriate.
+
+### 6. Commit and Push
+
+```bash
+$ git add .
+$ git commit -m "Add: Description of your change"
+$ git push origin feature/your-feature-name
+```
+
+### 7. Open a Pull Request
+
+Submit a pull request from your branch to the `main` branch of this repository. Fill out the PR template with:
+
+* A brief summary of your changes
+* Related issue (if applicable)
+* Screenshots or logs for UI/code changes
+
+---
+
+## Contribution Guidelines
+
+* Keep commits atomic and meaningful.
+* Use clear and descriptive names for files, folders, and variables.
+* Include docstrings/comments for all functions and algorithms.
+* Maintain cross-platform compatibility (especially for scripts).
+* Do **not** modify files unrelated to your contribution.
+* Run linters and format your code (e.g., `black`, `flake8`).
+* Contributions should be beginner-friendly and educational.
+* Add references or links for advanced concepts where needed.
+
+---
+
+## Contribution Ideas
+
+You can contribute in many ways:
+
+* Add new Low Level design patterns or algorithms.
+* Improve documentation or examples
+* Create diagrams or visuals for concepts
+* Submit bug fixes or optimizations
+* Translate content into other languages
+* Add test cases or edge scenarios
+* Create presentation slides or learning guides
+
+---
+
+## Development Setup
+
+* Python 3.7+
+* pip
+
+To install common dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+For specific modules, refer to the README or project root guide.
+
+---
+
+## Support & Questions
+
+* Open an [Issue](https://github.com/raj713335/Low_Level_Design_LLD_Using_Python/issues) for bugs, questions, or feature requests.
+* Join discussions in the community tab or comments.
+* Please search existing issues before creating a new one.
+
+---
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the [GNU Lesser General Public License v2.1](LICENSE).
+
+---
+
+## Acknowledgment
+
+Your efforts make this project better! Whether it’s code, docs, or just a bug report — **every bit helps**. Let’s build the ultimate system design masterclass together.
+
+## Happy Contributing!
+