Capture Jupyter components for collaboration

[nrbgt]

What are the Jupyter/JupyterLab components we'll want to use?

[nrbgt]

My initial recommendations:

• https://github.com/jupyterlab/toc
• https://github.com/jupyterlab/jupyterlab-git
• https://github.com/jupyter/nbdime
• https://github.com/jupyterlab/jupyterlab-github