Adds a readme note about Mongoid adapter
Adds a readme note about Mongoid adapter

pacso/statesman,mmontalvo/statesman,mkcode/statesmin,timothyp/statesman,div/statesman,gocardless/statesman,image-tester/statesman,div/statesman,eljojo/statesman,image-tester/statesman,timothyp/statesman,gocardless/statesman,eljojo/statesman,mmontalvo/statesman,pacso/statesman