Update keps/sig-windows/20190103-windows-node-support.md
Update keps/sig-windows/20190103-windows-node-support.md

Co-Authored-By: michmike <0926e3514d6856d9b489b69b745582fcd663eba2@users.noreply.github.com>
kubernetes/enhancements,kubernetes/enhancements,kubernetes/enhancements