Add instructions on how to make a cluster of two Scylla nodes.
Fix Docker Hub documentation to match what we have right now. More work is needed in the following areas: * How to make a cluster * How to configure Docker image for production use
Signed-of-by: Benoît Canet <benoit@scylladb.com> Message-Id: <1466438296-5593-1-git-send-email-benoit@scylladb.com>