Merge pull request #8187 from pytest-dev/asottile-patch-1

Add badge for pre-commit.ci

Author: nicoddemus

README.rst

@@ -23,6 +23,10 @@
 .. image:: https://github.com/pytest-dev/pytest/workflows/main/badge.svg
     :target: https://github.com/pytest-dev/pytest/actions?query=workflow%3Amain
 
+.. image:: https://results.pre-commit.ci/badge/github/pytest-dev/pytest/master.svg
+   :target: https://results.pre-commit.ci/latest/github/pytest-dev/pytest/master
+   :alt: pre-commit.ci status
+
 .. image:: https://img.shields.io/badge/code%20style-black-000000.svg
     :target: https://github.com/psf/black