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