Clarify stats.loginsCount
Clarify stats.loginsCount

Clarify that stats.loginsCount can be increased even though rules don't get a chance to run. 
Works together with https://github.com/auth0/rules/pull/209
jeffreylees/docs,jeffreylees/docs,jeffreylees/docs,yvonnewilson/docs,auth0/docs,auth0/docs,yvonnewilson/docs,auth0/docs,yvonnewilson/docs