Updated README.md

Author: oliverandrich

README.md

@@ -2,7 +2,7 @@
 
 ![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/oliverandrich/django-tailwind-cli/test.yml?style=flat-square)
 [![PyPI](https://img.shields.io/pypi/v/django-tailwind-cli.svg?style=flat-square)](https://pypi.org/project/django-tailwind-cli/)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg?style=flat-square)](https://github.com/psf/black)
+[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 [![uv](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/uv/main/assets/badge/v0.json)](https://github.com/astral-sh/uv)
 ![GitHub](https://img.shields.io/github/license/oliverandrich/django-tailwind-cli?style=flat-square)
 ![Django Versions](https://img.shields.io/pypi/frameworkversions/django/django-tailwind-cli)