changed readme to reflect changes in how the databases gets passed into model instances
changed readme to reflect changes in how the databases gets passed into model instances

sumcumo/couch_potato,sumcumo/couch_potato,OvercastNetwork/couch_potato,OvercastNetwork/couch_potato,npickens/couch_tomato,tranc99/couch_potato,tranc99/couch_potato,langalex/couch_potato,npickens/couch_tomato