Update badges in readme

README.md

@@ -1,7 +1,7 @@
 [![Build Status](https://img.shields.io/github/workflow/status/equinor/res2df/res2df)](https://github.com/equinor/res2df/actions?query=workflow%3Ares2df)
 [![codecov](https://codecov.io/gh/equinor/res2df/graph/badge.svg?token=3sZBGGu5VG)](https://codecov.io/gh/equinor/res2df)
-[![Python 3.8-3.10](https://img.shields.io/badge/python-3.8%20|%203.9%20|%203.10-blue.svg)](https://www.python.org)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://black.readthedocs.io/)
+[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/res2df)](https://img.shields.io/pypi/pyversions/res2df)
+[![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)
 [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
 
 # res2df