ImJoy on ITR

[joshmoore]

I just noticed that you have the nice ITR page, and wondering if we can add
ImJoy (https://imjoy.io) to it.

We have already the BIII page: https://biii.eu/imjoy

For domains, I suggest "bio-imaging, medical-imaging, bioinformatics, deep
learning".

cc: @jburel @oeway

[manics]

Is there an example notebook?

Since it'll require a new dependency we could add websocket support to the IDR in prod70 and link to a mybinder notebook maintained by the imjoy maintainer? This also provides a future path for other tools without burdening us with the maintenance of more notebooks.