backup commands needs a parameter for projects

[igreader]

In project folder /Users/alex/projects/csm1,
run csm backup create to backup all sessions of this project(if exists),
s3 object key=/backups/macbookpro/csm1/<session-id>

In project folder /Users/alex/projects/msc2,
run csm backup create to backup all sessions of this project(if exists),
s3 object key=/backups/macbookpro/msc2/<session-id>