Fixed #16910 -- Misleading regex in urlpatterns inclusion docs.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16893 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/http/urls.txt

@@ -465,8 +465,8 @@ directly the pattern list as returned by `patterns`_ instead. For example::
     from django.conf.urls import patterns, url, include
 
     extra_patterns = patterns('',
-        url(r'reports/(?P<id>\d+)/$', 'credit.views.report', name='credit-reports'),
-        url(r'charge/$', 'credit.views.charge', name='credit-charge'),
+        url(r'^reports/(?P<id>\d+)/$', 'credit.views.report', name='credit-reports'),
+        url(r'^charge/$', 'credit.views.charge', name='credit-charge'),
     )
 
     urlpatterns = patterns('',