Add steps of tutorial all into one like the Angular Tutorial

[jcrubino]

The tutorial is a great guide in the low to high level features available but by the end only the most abstracted code is left and this is the only code in the example tutorial git repo.

It would be nice to have all the tutorial code available in similar fashion as the angualrjs tutorials where the learner can step through them one by one.

[tomchristie]

Willing to consider if someone does the legwork, but not super-keen as it'd mean more maintenance. Closing this, but still open to considering proactive contributions towards something like that.