Revert changes to test notebook
Revert changes to test notebook

blink1073/jupyter-js-notebook,jupyter/jupyter-js-notebook,jupyter/jupyter-js-notebook,blink1073/jupyter-js-notebook,blink1073/jupyter-js-notebook,jupyter/jupyter-js-notebook,blink1073/jupyter-js-notebook,jupyter/jupyter-js-notebook,blink1073/jupyter-js-notebook,jupyter/jupyter-js-notebook