ipynb: Undo accidental breakage of example
Unwanted modification happened in: Revert "Vagrantfile: Use 0.0.0.0 IP for jupyterlab" This reverts commit c3af0526.
Unwanted modification happened in: Revert "Vagrantfile: Use 0.0.0.0 IP for jupyterlab" This reverts commit c3af0526.