Fix a small mistake in demo project
Fix a small mistake in demo project

Fix a small mistake in demo project

WenchaoD/FSCalendar,mohsinalimat/FSCalendar,tilltue/FSCalendar,WenchaoIOS/FSCalendar,f33chobits/FSCalendar,f33chobits/FSCalendar,mohsinalimat/FSCalendar,WenchaoD/FSCalendar,tilltue/FSCalendar,mohsinalimat/FSCalendar,WenchaoIOS/FSCalendar,mohsinalimat/FSCalendar