Index: custom_model_fields.txt
===================================================================
--- custom_model_fields.txt	(revision 6718)
+++ custom_model_fields.txt	(working copy)
@@ -43,7 +43,7 @@
         # ... (other possibly useful methods omitted) ...
 
 This is just an ordinary Python class, nothing Django-specific about it. We
-would like to be able to things like this in our models (we assume the
+would like to be able to do things like this in our models (we assume the
 ``hand`` attribute on the model is an instance of ``Hand``)::