DOC Adds CirrusCI badge to readme
.. -*- mode: rst -*-
-|Azure|_ |Travis|_ |Codecov|_ |CircleCI|_ |Nightly wheels|_ |Black|_ |PythonVersion|_ |PyPi|_ |DOI|_ |Benchmark|_
+|Azure|_ |Travis|_ |CirrusCI|_ |Codecov|_ |CircleCI|_ |Nightly wheels|_ |Black|_ |PythonVersion|_ |PyPi|_ |DOI|_ |Benchmark|_
.. |Azure| image:: https://dev.azure.com/scikit-learn/scikit-learn/_apis/build/status/scikit-learn.scikit-learn?branchName=main
.. _Azure: https://dev.azure.com/scikit-learn/scikit-learn/_build/latest?definitionId=1&branchName=main
.. |Travis| image:: https://api.travis-ci.com/scikit-learn/scikit-learn.svg?branch=main
.. _Travis: https://app.travis-ci.com/github/scikit-learn/scikit-learn
+.. |CirrusCI| image:: https://img.shields.io/cirrus/github/scikit-learn/scikit-learn/main?label=Cirrus%20CI
+.. _CirrusCI: https://cirrus-ci.com/github/scikit-learn/scikit-learn/main
+
.. |Codecov| image:: https://codecov.io/gh/scikit-learn/scikit-learn/branch/main/graph/badge.svg?token=Pk8G9gg3y9
.. _Codecov: https://codecov.io/gh/scikit-learn/scikit-learn
