message: refine docker usage documentation
  docker has been available as native windows/macOS installation for about a year and is considered "stable"
diff: @@ -51,8 +51,8 @@ overview please visit the official project page:
  1. Install [Docker](https://www.docker.com)
  2. Run `docker pull bkimminich/juice-shop`
  3. Run `docker run -d -p 3000:3000 bkimminich/juice-shop`
  -4. Browse to <http://localhost:3000> (on macOS browse to
  - <http://192.168.99.100:3000> instead)
  +4. Browse to <http://localhost:3000>
  + (on macOS and Windows browse to <http://192.168.99.100:3000> if you are using docker-machine instead of the native docker installation )
  #### Even easier: Run Docker Container from Docker Toolbox (Kitematic)
  