Fixed #18024 -- Reworded sentence in models documentation. Thanks Preston Holmes for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17912 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/db/models.txt

@@ -577,8 +577,8 @@ Thus, it's now possible to have multiple fields of type
 Models across files
 -------------------
 
-It's perfectly OK to relate a model to one from another app. To do this,
-import the related model at the top of the model that holds your model. Then,
+It's perfectly OK to relate a model to one from another app. To do this, import
+the related model at the top of the file where your model is defined. Then,
 just refer to the other model class wherever needed. For example::
 
     from geography.models import ZipCode