Updates Readme with a new section about updating instances
Updates Readme with a new section about updating instances

ScoutGroup/onionrm,pskucherov/node-orm2,jtrinc/node-orm2,mariamjpinto/node-orm2,kapouer/node-orm2,dresende/node-orm2,kolonse/node-orm2,benkitzelman/node-orm2,hallta/node-orm2,stueynz/node-orm2,kolonse/node-orm2,locomote/node-orm2,benkitzelman/node-orm2,kapouer/node-orm2,benkitzelman/node-orm2,kolonse/node-orm2,kapouer/node-orm2