made the decking file a yaml, not json. Now I can comment it yay
Made the API do something helpful on a request to '/'; also made it return 0, not null, on no visitors.
don't pollute the docker context with the .git directory (or submoduled decking repo, if any)
Node install of express was failing, due to problems with read-only file systes. Specifying --no-bin-link fixies this.
fixed examples; added lots of documentation