Extend contributing.md with more examples

[alenkacz]

No description provided.

[kensipe]

lgtm

IMO we should NOT deploy the manager for make deploy. Who will use make deploy other than developers. I would expect developers to use make run to run manager. (even cli devs).

nice work!

[alenkacz]

@kensipe yeah I thought about it, I am still not decided. It depends on who is the make-deploy for. We actually inherited it from kubebuilder and there it's their way of deploying what you have into the cluster, they talk about it as deployment method. But I don't think that anyone sane would use it in production, I hope :)

also we cannot easily exclude manager right now because init does not support that and that command would be even more confusing then. I guess then I would pretty much rather remove it altogether :)

[ANeumann82]

Nice, more dev docs is always good.