upup: add docs for statestore concept
upup: add docs for statestore concept

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