https://www.docker.io/gettingstarted/# https://www.docker.io/gettingstarted/# Try the tutorial, if it still doesn't make much sense to you, then it's probably

https://www.docker.io/gettingstarted/# https://www.docker.io/gettingstarted/# Try the tutorial, if it still doesn't make much sense to you, then it's probably not something you need to worry about.