news: add news for v0.11.1
news: add news for v0.11.1

ajeddeloh/ignition,ajeddeloh/ignition,higebu/ignition,coreos/ignition,AlexNPavel/ignition,coreos/ignition,dgonyeo/ignition,AlexNPavel/ignition,higebu/ignition,coreos/ignition,higebu/ignition,AlexNPavel/ignition,dgonyeo/ignition,dgonyeo/ignition,ajeddeloh/ignition