message: docs(dev-infra): update ngcontainer docs
  Update developer instructions by clarify and adding missing login details for the hub.docker.com image server.
  PR Close
diff: @@ -46,7 +46,7 @@ $ xvfb-run -a yarn test
  Install Docker on your machine in order to build/pull/push this image.
  -Get the teamangular password from http://valentine and log in:
  +Log in to `hub.docker.com` as `teamangular` using the following command:
  `$ docker login`
  