Add docker start and docker stop to list of docker commands

[samitcheema]

Problem

docker start and docker stop not listed under common CLI commands.

Steps to reproduce the problem

N/A

Screenshots

N/A

Proposed solution

Docker Commands

Please read about Docker concepts and Docker overview to get a sense of what Docker is.

A few common Docker CLI commands you might need for working with treehouses are:

• docker start <container-id> - start one or multiple stopped containers.
• docker stop <container-id> - stop one or multiple running containers.
• docker ps – show running containers
• docker ps -a - show all containers
• docker logs <container-id> -f - follow the log output of a container
• docker images – list images

[rjpadilla]

I find it odd that the docker start/stop commands show up in a later step but doesn't appear in the step that introduces docker...
I agree that those two steps should be included in the common Docker Commands section.