Turn reference docs into a tutorial

Documentation that lists every option but never shows you how to start.

The documentation below is reference material. Turn it into a tutorial.

1. Pick one realistic thing a person would want to build with this, and say what it is.
2. Get me to a working result as fast as possible, even a trivial one. The first milestone should come before any conceptual explanation.
3. Build it up in steps. Each step must produce something I can run or observe, and must say what I should see.
4. Introduce concepts only at the moment they become necessary, not up front.
5. At each step, name the mistake most likely to be made and what the error looks like.
6. Finish with what to read next in the reference, now that I have context.

Ignore options and parameters that the example does not need.

Documentation:

Practice, not reading. Worked examples, exercises and Socratic sessions that make you do the thinking.