Adding auth_source param in documentation. 
Adding auth_source param in documentation. 

If anyone has different database name associated with the user’s credentials then they have to specify this parameter.
RasaHQ/rasa_nlu,RasaHQ/rasa_nlu,RasaHQ/rasa_nlu,RasaHQ/rasa_core,RasaHQ/rasa_core,RasaHQ/rasa_core