fix typo in comment

smash/web/forms.py

@@ -252,7 +252,7 @@ class AppointmentEditForm(ModelForm):
                 appointment_types_from_links.append(appointment_type_link.appointment_type)
         for appointment_type in appointment_types:
             if appointment_type not in appointment_types_from_links:
-                # we create new appointment links for appointements types that have been added
+                # we create new appointment links for appointments types that have been added
                 appointment_type_link = AppointmentTypeLink(appointment=appointment, appointment_type=appointment_type)
                 appointment_type_link.save()
         return appointment