doc(decorator): add info about assocication vs model naming
doc(decorator): add info about assocication vs model naming

doktordirk/aurelia-orm,bas080/aurelia-orm,SpoonX/aurelia-orm,doktordirk/aurelia-orm,bas080/aurelia-orm,freska-fi/aurelia-orm,SpoonX/aurelia-orm,freska-fi/aurelia-orm