Merge pull request #165 from neutrinoceros/doc/cleanup_black_badge

DOC: drop black badge

Author: neutrinoceros

README.md

@@ -8,7 +8,6 @@
 [![pre-commit.ci status](https://results.pre-commit.ci/badge/github/yt-project/cmyt/main.svg)](https://results.pre-commit.ci/latest/github/yt-project/cmyt/main)
 
 [![yt-project](https://img.shields.io/static/v1?label="works%20with"&message="yt"&color="blueviolet")](https://yt-project.org)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json)](https://github.com/charliermarsh/ruff)
 
 <a href="http://yt-project.org"><img src="https://raw.githubusercontent.com/yt-project/yt/main/doc/source/_static/yt_logo.png" width="150"></a>