abda4dd Update the README for OpenShift deployments

Authored and Committed by csomh 5 years ago
    Update the README for OpenShift deployments
    
    The backend container images needs a build argument holding the UMB CA
    certificate. Update the README with this information.
    
    Signed-off-by: Hunor Csomortáni <csomh@redhat.com>
    
        
file modified
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