ONGR demo presentation docker image.

Walkthrough:

1. Pull the image:

   docker pull ongr/demo-presentation

2. Run the container:

   docker run -d -p 80:80 --name demo -t ongr/demo-presentation

3. Run docker logs to check when all services are booted up and navigate to your docker host IP address in the browser to view the ONGR demo presentation.