Fix README

Author: martinRenou

README.md

@@ -2,7 +2,7 @@
 
 [![Github Actions Status](https://github.com/jupyterlite/xeus-python-kernel/workflows/Build/badge.svg)](https://github.com/jupyterlite/xeus-python-kernel/actions/workflows/build.yml)
 
-A Lua kernel for JupyterLite running in the browser.
+The [xeus-python](https://github.com/jupyter-xeus/xeus-python) Python kernel for JupyterLite running in the browser.
 
 ![jupyterlite-xeus-python](https://user-images.githubusercontent.com/591645/136570953-9bae67ad-fca6-436a-99e8-4cb6b0536d8c.gif)