Needs feedback

[thibaudcolas]

I'm looking for help with this! It runs fine on my machine, but the content needs to be finished and more importantly beta tested:

• Does it work? On OSX, Linux, Windows?
• Does it make sense?
• Does it need to be upgraded to D3 v4 to be useful?
• Would it be more useful with other material added?
• Anything to remove?
• Does the relationship between the server command and other parts of the workshop CLI make sense?