doc: README.md

README.md

-# Python Ruff
+# Ruff Docker Image
 
-Docker image for python with Ruff installed
+[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://docs.astral.sh/ruff/)
+[![Pipeline](https://lab.frogg.it/swepy/containers/ruff/badges/main/pipeline.svg)](https://lab.frogg.it/swepy/containers/ruff/-/pipelines?ref=main)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://lab.frogg.it/swepy/cicd-templates/ruff-docker-image/-/blob/main/LICENSE)
+
+[![Static Badge](https://img.shields.io/badge/src-Frogg.it-green)](https://lab.frogg.it/swepy/containers/ruff)
+[![Static Badge](https://img.shields.io/badge/mirror-GitLab.com-orange)](https://gitlab.com/swepy/containers/ruff)
+
+This Docker image provides a ready-to-use environment with Ruff installed. Ruff is a
+highly efficient Python linter and code formatter that significantly speeds up code
+checking and formatting tasks. Built with Rust, Ruff offers performance that is orders
+of magnitude faster than traditional tools
+like [Flake8](https://flake8.pycqa.org/en/latest/)
+or [Black](https://black.readthedocs.io/en/stable/index.html).
+
+## Security
+
+### All versions
+
+[CVE-2018-20225⁠](https://scout.docker.com/vulnerabilities/id/CVE-2018-20225): This only
+affects use of the --extra-index-url option, which is not used to install ruff in the
+image.
+
+## CICD
+
+We rely on GitLab CI components to build and release this image:
+
+[![Release by Changelog](https://img.shields.io/badge/CICD-Release%20By%20Changelog-white?logo=gitlab)](https://gitlab.com/explore/catalog/swepy/cicd-templates/release-by-changelog)
+[![Docker Build](https://img.shields.io/badge/CICD-Docker%20Build-white?logo=docker)](https://gitlab.com/explore/catalog/swepy/cicd-templates/docker-build)
+[![PyPI to Docker missing version](https://img.shields.io/badge/CICD-PyPI%20to%20Docker%20missing%20version-white?logo=python)](https://gitlab.com/explore/catalog/swepy/cicd-templates/pypi-to-docker-missing-version)
+[![Kaniko](https://img.shields.io/badge/backend-Kaniko-orange?logo=google)](https://github.com/GoogleContainerTools/kaniko)