#1 [docs/readme] Maybe include a installation guide?

Under Windows it appears you just use cargo install --path .

I suppose under Linux it would probably be the same

Still would be great to have a installation guide

Meh, I'll just leave it as it is now in [688fb4fa86]

Oops, cargo install --path . is great if they cloned the repo... but if they just want to install it then cargo install rustpan --git https://git.red-green.com/david/rustpan

Can you update the README.md so it says that, rather then the old cargo install --path .?