Problem: People can't use the project

[Vaelatern]

Solution: Add 2 more pieces of documentation.

1. A quick-start. Git clone, cd, go run. Show what the tree(1) result will be.
2. Assumptions made. Show what this allows you to do. Walk through creating a filesystem to mount. Show scripting the creation of a filesystem. Explain when or when not to use size.

[Vaelatern]

These can both go in the README, one after the other.