Update machine_types.go for i3
Update machine_types.go for i3

dacohen/kops,sethpollack/kops,tsupertramp/kops,kubernetes/kops,blakebarnett/kops,chrislovecnm/kops,ikropotov/kops,mad01/kops,gambol99/kops,BradErz/kops,mad01/kops,robinpercy/kops,WillemMali/kops,pdh/kops,DualSpark/kops,ikropotov/kops,kris-nova/kops,aledbf/kops,blakebarnett/kops,kris-nova/kops,blakebarnett/kops,dacohen/kops,luomiao/kops,tsupertramp/kops,faraazkhan/kops,chrislovecnm/kops,BradErz/kops,pdh/kops,MadDogTechnology/kops,dacohen/kops,gambol99/kops,sethpollack/kops,chrislovecnm/kops,zytek/kops,reactiveops/kops,BradErz/kops,sp-borja-juncosa/kops,zytek/kops,reactiveops/kops,tsupertramp/kops,zytek/kops,kris-nova/kops,austinmoore-/kops,robinpercy/kops,leandrocr/kops,luomiao/kops,austinmoore-/kops,DualSpark/kops,leandrocr/kops,austinmoore-/kops,sp-borja-juncosa/kops,mad01/kops,andrewsykim/kops,mad01/kops,aledbf/kops,pdh/kops,WillemMali/kops,sethpollack/kops,leandrocr/kops,MadDogTechnology/kops,robinpercy/kops,kubernetes/kops,andrewsykim/kops,aledbf/kops,faraazkhan/kops,justinsb/kops,gambol99/kops,luomiao/kops,reactiveops/kops,faraazkhan/kops,sp-borja-juncosa/kops,tsupertramp/kops,zytek/kops,justinsb/kops,andrewsykim/kops,justinsb/kops,ikropotov/kops,austinmoore-/kops,ikropotov/kops,sp-borja-juncosa/kops,WillemMali/kops,robinpercy/kops,gambol99/kops,luomiao/kops,dacohen/kops,kubernetes/kops,BradErz/kops,blakebarnett/kops,DualSpark/kops,pdh/kops,MadDogTechnology/kops,chrislovecnm/kops,MadDogTechnology/kops,aledbf/kops,kris-nova/kops,WillemMali/kops,faraazkhan/kops,andrewsykim/kops,sethpollack/kops,DualSpark/kops,reactiveops/kops,leandrocr/kops