Update README.md

README.md

@@ -45,7 +45,6 @@ Afterwards, activate it:
 
 ```shell
 $ conda activate scipython
-$ jupyter nbextension enable splitcell/splitcell  # This is required to view some of the slides in the Jupyter notebooks
 ```
 
 #### Anaconda Navigator (e.g. Windows)
@@ -63,7 +62,9 @@ $ python3 -m venv .venv                          # Creates a virtual environment
 $ source .venv/bin/activate
 $ pip3 install --upgrade pip
 $ pip3 install -r requirements.txt               # This file is located at the root of the directory containing this repository.
-$ jupyter nbextension enable splitcell/splitcell # This is required to view some of the slides in the Jupyter notebooks
+$ jupyter contrib nbextension install --sys-prefix
+$ jupyter-nbextension install rise --py --sys-prefix
+$ jupyter-nbextension enable rise --py --sys-prefix
 ```
 
 Please refer to [this link](https://docs.python.org/3/library/venv.html) for how to create a virtual environment on Windows.