Chapter 6 Lab, Docker-Machine install instructions out of date

fergocity

I used the instructions from this page, and docker-machine installed fine and the rest of lab went fine.

https://docs.docker.com/machine/install-machine/

base=https://github.com/docker/machine/releases/download/v0.14.0 &&
  curl -L $base/docker-machine-$(uname -s)-$(uname -m) >/tmp/docker-machine &&
  sudo install /tmp/docker-machine /usr/local/bin/docker-machine

nkhare

Thanks for noticing it. We'll update it, in the next update cycle.