Fix on documentation - wrong reference at previous created view UserList / UserDetail

docs/tutorial/6-viewsets-and-routers.md

@@ -10,7 +10,9 @@ A `ViewSet` class is only bound to a set of method handlers at the last moment,
 
 Let's take our current set of views, and refactor them into view sets.
 
-First of all let's refactor our `UserListView` and `UserDetailView` views into a single `UserViewSet`.  We can remove the two views, and replace then with a single class:
+First of all let's refactor our `UserList` and `UserDetail` views into a single `UserViewSet`.  We can remove the two views, and replace then with a single class:
+
+    from rest_framework import viewsets
 
     class UserViewSet(viewsets.ReadOnlyModelViewSet):
         """
@@ -23,7 +25,6 @@ Here we've used `ReadOnlyModelViewSet` class to automatically provide the defaul
 
 Next we're going to replace the `SnippetList`, `SnippetDetail` and `SnippetHighlight` view classes.  We can remove the three views, and again replace them with a single class.
 
-    from rest_framework import viewsets
     from rest_framework.decorators import link
 
     class SnippetViewSet(viewsets.ModelViewSet):