      <h1>{{ poll.question }}</h1>
  
      {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
  
      <form action="/polls/{{ poll.id }}/vote/" method="post">
      {% csrf_token %}
      {% for choice in poll.choice_set.all %}
          <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" />
          <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />
      {% endfor %}
 
</s> remove     <a href="/polls/{{ poll.id }}/">Vote again?</a>
 </s> add     <a href="{% url 'polls.views.detail' poll.id %}">Vote again?</a> </s> remove * We set the form's ``action`` to ``/polls/{{ poll.id }}/vote/``, and we
 </s> add * We set the form's ``action`` to ``{% url 'polls.views.vote' poll.id %}``, and we </s> remove * We've added a name, ``poll_results``, to the results view so
  that we have a way to refer to its URL later on (see the
 </s> add * We've added the ``name`` argument to the views (e.g. ``name='poll_results'``)
  so that we have a way to refer to their URL later on (see the </s> remove                 template_name='polls/detail.html')),
 </s> add                 template_name='polls/detail.html'),
            name='poll_detail'),
    <form action="{% url 'polls.views.vote' poll.id %}" method="post">
      <h1>{{ poll.question }}</h1>
  
      {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
  
    <form action="{% url 'polls.views.vote' poll.id %}" method="post">
      {% csrf_token %}
      {% for choice in poll.choice_set.all %}
          <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" />
          <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />
      {% endfor %}
keep keep keep keep replace keep keep keep keep keep
 Fixed #18476 - Added use of {% url %} tag to tutorial.

Thanks Claude Paroz for the patch. 
docs/intro/tutorial04.txt