4ba6571 doc: explain sigkey behavior

Authored and Committed by ktdreyer 3 years ago
    doc: explain sigkey behavior
    
    Explain how Pungi operates on the sigkeys list, and what happens when
    there is only one item in the list.
    
    Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
    
        
file modified
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