network-config-with-networkd: change MIIMonitorSec to 1
network-config-with-networkd: change MIIMonitorSec to 1

Based on user feedback on this thread: https://groups.google.com/d/msg/coreos-user/OaOX8AuoQCE/w3qVCTqCAQAJ
joshix/docs,jonboulle/docs,endocode/coreos-docs,atxwebs/docs,coreos/docs