Update README.md
Update README.md

This needs to be called out somewhere, it's real easy to waste a day trying to find this.
Merge pull request #29 from nackjicholson/master

Documentation For 13306 port number
make port hiera changeable
Merge pull request #33 from grosser/grosser/hiera-port

make port hiera changeable
Merge remote-tracking branch 'boxen/master'

* boxen/master:
  make port hiera changeable
  Update README.md
  Update README.md