Update docs content

Author: martinRenou

docs/source/index.rst

@@ -8,11 +8,15 @@ To install the extension, execute:
 
 .. code::
 
-    pip install xeus-python-kernel
+    pip install jupyterlite-xeus-python
 
 Try it online
 -------------
 
 You can try xeus-python directly in this documentation page!
 
-.. jupyterlite::
+.. replite::
+   :kernel: xeus-python
+   :height: 600px
+
+    print("Hello from xeus-python!")