message: Remove node.js 4.x from compatibility table
diff: @@ -125,12 +125,12 @@ docker run -d -p 80:3000 bkimminich/juice-shop
  ## Node.js version compatibility
  OWASP Juice Shop officially supports the following versions of
  -[node.js](http://nodejs.org) and offers Docker images and packaged
  -distributions accordingly:
  +[node.js](http://nodejs.org) in line as close as possible with the
  +official [node.js LTS schedule](https://github.com/nodejs/LTS). Docker
  +images and packaged distributions are offered accordingly:
  | node.js | [Docker image](https://registry.hub.docker.com/u/bkimminich/juice-shop) | [Packaged distributions](https://github.com/bkimminich/juice-shop/releases/latest) |
  |:--------|:------------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------------|
  -| 4.x | | `juice-shop-<version>_node4_windows_x64.zip`, `juice-shop-<version>_node4_linux_x64.tgz` |
  | __6.x__ | __`latest`__ (current official release), `snapshot` (preview from `develop` branch) | `juice-shop-<version>_node6_windows_x64.zip`, `juice-shop-<version>_node6_linux_x64.tgz` |
  | 8.x | | `juice-shop-<version>_node8_windows_x64.zip`, `juice-shop-<version>_node8_linux_x64.tgz` |
  