[1.9.x] Made a couple tutorial corrections for Django 1.9.

Backport of 8a5a002f2f from master

docs/intro/tutorial01.txt

@@ -227,6 +227,7 @@ That'll create a directory :file:`polls`, which is laid out like this::
     polls/
         __init__.py
         admin.py
+        apps.py
         migrations/
             __init__.py
         models.py
@@ -261,6 +262,7 @@ Your app directory should now look like::
     polls/
         __init__.py
         admin.py
+        apps.py
         migrations/
             __init__.py
         models.py
@@ -282,8 +284,8 @@ In the ``polls/urls.py`` file include the following code:
     ]
 
 The next step is to point the root URLconf at the ``polls.urls`` module. In
-``mysite/urls.py`` insert an :func:`~django.conf.urls.include`, leaving you
-with:
+``mysite/urls.py``, add an import for ``django.conf.urls.include`` and insert
+an :func:`~django.conf.urls.include` in the ``urlpatterns`` list, so you have:
 
 .. snippet::
     :filename: mysite/urls.py