Update docs link (#1103)

Author: blink1073

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://github.com/ipython/ipykernel/actions/workflows/ci.yml/badge.svg?query=branch%3Amain++)](https://github.com/ipython/ipykernel/actions/workflows/ci.yml/badge.svg?query=branch%3Amain++)
 [![codecov](https://codecov.io/gh/ipython/ipykernel/branch/main/graph/badge.svg?token=SyksDOcIJa)](https://codecov.io/gh/ipython/ipykernel)
-[![Documentation Status](https://readthedocs.org/projects/ipython/badge/?version=latest)](http://ipython.readthedocs.io/en/latest/?badge=latest)
+[![Documentation Status](https://readthedocs.org/projects/ipykernel/badge/?version=latest)](http://ipykernel.readthedocs.io/en/latest/?badge=latest)
 
 This package provides the IPython kernel for Jupyter.