Launch Docker for Mac from commandline

[rahul286]

Currently, when Docker for the app is installed but not running, I see following

rahul286:~/$ ee site list                                                                               [15:00:46]
Error: Docker not installed or not running.
For macOS docker can be installed using: `brew cask install docker`

How if we launch "Docker for Mac" from the command line using:

open -a Docker

We may add a confirmation.