Update docs/design_proposals/kaniko-proxy-setting.md
Update docs/design_proposals/kaniko-proxy-setting.md

Co-Authored-By: prary <ff0ba4b5dbbc72597572727c52dfb0f927600835@gmail.com>
GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold,GoogleContainerTools/skaffold