note that --link just adds a container to /etc/hosts
that means you can connect to mongodb on another container
named "inspiring_boyd" by having mongo connect to the database
at "inspiring_boyd" instead of "localhost".
This automatically resolves to the IP address of the mongo container.
jupyter now runs successfully.
jupyter saves to the /notebook directory.
tested out creating a notebook.
tested out importing several libraries.
...only thing missing is seaborn.
