4567cec docs: Improve documentation for serial consoles

Authored and Committed by Andrea Bolognani 6 years ago
    docs: Improve documentation for serial consoles
    
    Our current documentation is missing some information and doesn't
    do a great job at explaining how the <serial> and <console> elements
    are connected. Let's try to fix that.
    
    Signed-off-by: Andrea Bolognani <abologna@redhat.com>
    Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
    
        
file modified
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