Add vnodes config to readme
Add vnodes config to readme

rhedshi/node-hashring,XadillaX/node-hashring,bnoordhuis/node-hashring,XadillaX/node-hashring,authbox-lib/node-hashring,bnoordhuis/node-hashring,mercadolibre/node-hashring,bnoordhuis/node-hashring,3rd-Eden/node-hashring,bnoordhuis/node-hashring,PeterCxy/node-hashring,XadillaX/node-hashring,XadillaX/node-hashring