docs(contributing): improve contributing guide clarity and completeness

docs/contributing.md

@@ -1,45 +1,55 @@
-# Contributing to Openapi SDK
+# Contributing to Openapi PHP SDK
 
-Thanks for considering contributing! 🎉  
-We welcome all kinds of contributions: bug reports, feature requests, documentation improvements, and code enhancements.
+Thanks for considering contributing! We welcome all kinds of contributions: bug reports, feature requests, documentation improvements, and code enhancements.
 
 ## How to Contribute
 
 1. **Fork the repository** and clone it locally:
    ```bash
-   git clone https://github.com/<username>/<repo>.git
+   git clone https://github.com/openapi/openapi-php-sdk.git
    ```
 
-2. **Create a branch** for your feature or fix:
+2. **Install dependencies:**
+   ```bash
+   composer install
+   ```
+
+3. **Create a branch** for your feature or fix:
    ```bash
    git checkout -b feature/your-feature-name
    ```
-
-3. **Make your changes** and commit them:
+
+4. **Make your changes** and run the tests:
+   ```bash
+   ./vendor/bin/phpunit tests/
+   ```
+
+5. **Commit your changes:**
    ```bash
    git commit -m "Add some feature"
    ```
-   
-4. **Push your branch** to your fork:
+
+6. **Push your branch** to your fork:
    ```bash
    git push origin feature/your-feature-name
    ```
-   
-5. **Open a Pull Request** describing your changes.
+
+7. **Open a Pull Request** describing your changes.
 
 ## Guidelines
 
-* Follow the existing **Php coding style**.
-* Include **tests** for new features or bug fixes when applicable.
-* Keep **commit messages clear and concise**.
-* Update **documentation** as needed for your changes.
+- Follow the existing **PHP coding style** (PHP 8.0+).
+- Include **tests** for new features or bug fixes when applicable.
+- Keep **commit messages clear and concise**.
+- Write all code, comments, and documentation in **English**.
+- Update **documentation** as needed for your changes.
 
 ## Reporting Issues
 
 To report bugs or request features, please **open an issue** on GitHub including:
 
-* Clear description of the problem or feature.
-* Steps to reproduce (if applicable).
-* Relevant logs or screenshots.
+- A clear description of the problem or feature.
+- Steps to reproduce (if applicable).
+- Relevant logs or error output.
 
-Thank you for helping improve Openapi SDK! 🚀
+Thank you for helping improve the OpenAPI PHP SDK!