Integrate example project into doc build

We currently have an `example_conf.json` in our project that shows an example of the config. We should instead use the example project inside the docs, this will make sure that all info in the docs is up to date and there is no duplication.

Currently however the `examples` has a control client application that is more complicated than it should be for documentation, as there we have some code to make it a cli taking arguments. Maybe a different project should be made?

Or maybe it would be good to have separate projects so that its easier to extend?