[Docs] Provide some examples how to run in production

[Koc]

Please describe in documentation sollution for the next cases:

1. running some workers in parallel, for example for consuming messages by Messenger component from 4.1
2. running multiple php application backends, for example api
3. running periodical tasks by cron

[aCherfiScala]

I think that will be very useful if you explain how to deploy containers in production environment using docker orchestrator like Kubernetes or Swarm.

[maxhelias]

see #77

[arnaudbagnis]

I think that will be very useful if you explain how to deploy containers in production environment using docker orchestrator like Kubernetes or Swarm.

I agree with you, showing a helm charts template for k8s would be perfect 👍