Fix spelling mistake
Fix spelling mistake

Replace "takes care or user authentication" with "takes care of user authentication".
jodal/mopidy,jodal/mopidy,jcass77/mopidy,adamcik/mopidy,kingosticks/mopidy,adamcik/mopidy,mopidy/mopidy,mopidy/mopidy,mopidy/mopidy,jodal/mopidy,kingosticks/mopidy,adamcik/mopidy,kingosticks/mopidy,jcass77/mopidy,jcass77/mopidy