Added question to series1 docstring.
Added question to series1 docstring.

UWPCE-PythonCert/IntroPython2016,UWPCE-PythonCert/IntroPython2016,Baumelbi/IntroPython2016,Baumelbi/IntroPython2016,weidnem/IntroPython2016,UWPCE-PythonCert/IntroPython2016,weidnem/IntroPython2016,weidnem/IntroPython2016