Docs are missing example usage

[Ten0]

I cannot find in rustdoc or readme an example usage.

This makes it difficult to get a feel for how this would get used.

[baszalmstra]

There is an example implementation in the tests. But it could indeed be put more front and center. Or we could even a few simple example implementations!

Would you be open to contributing something?

[Ten0]

Unfortunately no I won't be able to dedicate time to this.

I was at rust week and the lib was mentioned in a talk and I thought I'd go and have a look how it's used and couldn't easily figure it out so I thought I'd just mention it.