Add step to install pre-commit in readme

README.md

@@ -248,10 +248,11 @@ If you have a suggestion that would make this better, please fork the repo and c
 Don't forget to give the project a star! Thanks again!
 
 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
+2. [Install pre-commit](https://pre-commit.com/#install) `pre-commit install`
+3. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
+4. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)
+5. Push to the Branch (`git push origin feature/AmazingFeature`)
+6. Open a Pull Request
 
 
 ### Testing