Create a basics to full featured tutorial

[leobauza]

It would be helpful to have a quickstart that introduces Microcosm without using React or the Addons (ie. an example only using Microcosm, Domains, and Actions).

The example could then grow to include and explain the following in this order:

1. Effects and why they serve a different purpose than Domains
2. Immutability Helpers and how they are internals, so you should leverage them
3. React and each Addon (not sure yet how to best to do this part)

My idea right now is a simple counter app with redo/undo and the non-react version is mostly built.