SolaraViz docs

[quaquel]

SolaraViz creates new model instances via **model_parameters.value. This implies that all inputs for instantiating a new model are keyword arguments. This is currently not well documented, and we might even consider adding this as an explicit check in _check_model_params.

[Corvince]

I agree that this should be documented and added to _check_model_params. Should be a good ticket for new contributors, so I tagged it. But I guess its not a high priority, since this has always been implicitly required (since mesa 0.x days), and as far as reported issues go never been an issue.

[ENUMERA8OR]

@Corvince I would like to contribute to this issue.

[Corvince]

Thats great to hear! Sorry for not responding earlier. If you have any specific question just ask, otherwise I am looking forward to your PR