dockma install
Download the Linux guest (dockma-linux) of this version into ~/.dockma/guest.
dockma install [--version] [--help]
Fetches dockma-linux-dockma --version, checks it against the release's SHA256SUMS and replaces the installed guest. DOCKMA_RELEASE_URL points it at another directory of release assets.
--version:
Show the version.
--help:
Show help information.