Completed initial documentation for openBIS docker
Signed-off-by: Artur Pedziwilk artur.pedziwilk@id.ethz.ch Ready to be merged to master. Approved under JIRA https://jira-bsse.ethz.ch/browse/RP-3101
Signed-off-by: Artur Pedziwilk artur.pedziwilk@id.ethz.ch Ready to be merged to master. Approved under JIRA https://jira-bsse.ethz.ch/browse/RP-3101