Fixed #12047 -- Fixed typo in generic views documentation. Thanks, sc…

…hickler

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12167 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/ref/generic-views.txt

@@ -542,7 +542,7 @@ In addition to ``extra_context``, the template's context will be:
     * ``next_day``: A ``datetime.date`` object representing the next day. If
       the next day is in the future, this will be ``None``.
 
-    * ``previous_day``: A ``datetime.date`` object representing the given day.
+    * ``previous_day``: A ``datetime.date`` object representing the previous day.
       Unlike ``next_day``, this will never be ``None``.
 
     * ``object_list``: A list of objects available for the given day. This