Example Pluto notebook on Binder for v.2

[jarvist]

This little webapp will build a working environment / URL to kick off a Binder run: http://pluto-on-binder.glitch.me/

BUT, currently all the Pluto notebooks won't run as they assume you can find PolaronMobility in '../'.
Now that v2 is registered, I suppose just including PolaronMobility as a dependency within the Pluto notebook should be quite consistent & reproducible.

• Figure out best way to run PolaronMobility on Binder
• Put together an exemplary notebook showing off some useful features of the package
• Cross link from the docs