[+] add CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+## Contributing
+
+We welcome contributions to ResultAthle! Here's how you can help:
+
+1. **Fork the Repository:** Start by forking the ResultAthle repository to your own GitHub account.
+
+2. **Clone the Repository:** Next, clone the repository to your local machine so you can start making changes.
+
+3. **Create a New Branch:** Make a new branch for your changes. This helps keep everything organized and separates your changes from the main codebase.
+
+4. **Make Your Changes:** Now you can start making changes to the code. Whether it's fixing a bug, adding a new feature, or improving documentation, your contributions are greatly appreciated!
+
+5. **Commit Your Changes:** Once you're done making changes, commit them with a clear and concise commit message.
+
+6. **Push Your Changes:** Push your changes to your forked repository on GitHub.
+
+7. **Submit a Pull Request:** Finally, submit a pull request so your changes can be reviewed and, if approved, merged into the main codebase.
+
+Please make sure to follow the project's coding standards and to test your code before submitting a pull request. If you have any questions, feel free to ask!