docs: Revise contributing section in README.md

Author: ChernegaSergiy

README.md

@@ -118,13 +118,15 @@ $manager->increment('page_views', 1)->then(function($newValue) {
 
 ## Contributing
 
-Contributions are welcome! Please follow these steps:
+Contributions are welcome and appreciated! Here's how you can contribute:
 
-1. Fork the project.
-2. Create your feature branch (`git checkout -b feature/AmazingFeature`).
-3. Commit your changes (`git commit -m 'Add some AmazingFeature'`).
-4. Push to the branch (`git push origin feature/AmazingFeature`).
-5. Open a Pull Request.
+1. Fork the project
+2. Create your feature branch (`git checkout -b feature/AmazingFeature`)
+3. Commit your changes (`git commit -m 'Add some AmazingFeature'`)
+4. Push to the branch (`git push origin feature/AmazingFeature`)
+5. Open a Pull Request
+
+Please make sure to update tests as appropriate and adhere to the existing coding style.
 
 ## License