A couple corrections to intro doc
A couple corrections to intro doc

tykling/django-swingtime,FortschrittApps/django-swingtime,thetreerat/django-swingtime,FortschrittApps/django-swingtime,tykling/django-swingtime,dakrauth/django-swingtime,thetreerat/django-swingtime,jonge-democraten/mezzanine-fullcalendar,FortschrittApps/django-swingtime,thetreerat/django-swingtime,tykling/django-swingtime