AddContainer does not have support for docker network

Hi,

Is there some roadmap for adding more docker container capabilities? Right now, I see that there is support for Volumes and Replicas using the ResourceAnnotations.

```
builder.AddContainer(..)
.WithAnnotation(new VolumeMountAnnotation(..))
.WithAnnotation(new ReplicaAnnotation(..))
```

I was looking to create a set of containers that use a docker network. If it's something that is not meant to be done using ResourceAnnotations, could you guide me on how we should do it? I see no option to add arguments to the 'docker run' command?

Greetings!

P.S. I'm loving this project already :)