README tweaks from PR reviews
README tweaks from PR reviews

andrewsykim/kops,robinpercy/kops,gambol99/kops,tsupertramp/kops,kubernetes/kops,gambol99/kops,tsupertramp/kops,andrewsykim/kops,aledbf/kops,tsupertramp/kops,robinpercy/kops,gambol99/kops,aledbf/kops,robinpercy/kops,andrewsykim/kops,mad01/kops,aledbf/kops,blakebarnett/kops,chrislovecnm/kops,aledbf/kops,kubernetes/kops,chrislovecnm/kops,kubernetes/kops,blakebarnett/kops,justinsb/kops,blakebarnett/kops,justinsb/kops,gambol99/kops,mad01/kops,justinsb/kops,chrislovecnm/kops,andrewsykim/kops,robinpercy/kops,mad01/kops,blakebarnett/kops,chrislovecnm/kops,tsupertramp/kops,mad01/kops