@dylanfareed => Added getting started.

* Sign in, create an app, get a token, ask for an artist.

This is completely interactive, using the ID and secret of the app you create.

![getting-started](https://cloud.githubusercontent.com/assets/542335/4068140/5befaad4-2e35-11e4-9933-71620ab81392.gif)

Here's some shell with the generated code copy-pasted from above.

![getting-started-shell](https://cloud.githubusercontent.com/assets/542335/4068169/ca8ba9ac-2e35-11e4-9b20-6d676e352b59.gif)