Getting Started guide

[thany]

Can we please have a getting started guide? I feel the documentation is missing this. There is a page that lists the commands you can use to install, and after that you're basically thrown head-first into detailed reference docs, which are not useful for first-time setup.

Unless installing mosquitto is literally all that's required (which I seriously doubt because it refuses to start on a vanilla docker installation), there needs to be some kind of step-by-step guide on how to setup mosquitto after installing it, and before diving into the all the CLI commands, API details, and protocol implementations and whatnot.