docs: add ovf env support to vmware section
docs: add ovf env support to vmware section

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