Update pagination.md

docs/api-guide/pagination.md

@@ -47,7 +47,7 @@ You can then apply your new style to a view using the `.pagination_class` attrib
 
     class BillingRecordsView(generics.ListAPIView):
         queryset = Billing.objects.all()
-        serializer = BillingRecordsSerializer
+        serializer_class = BillingRecordsSerializer
         pagination_class = LargeResultsSetPagination
 
 Or apply the style globally, using the `DEFAULT_PAGINATION_CLASS` settings key. For example: