<article>

  <h2>{{ startup.name }}</h2>
  <dl>
    <dt>Date Founded</dt>
      <dd>{{ startup.founded_date|date:"F jS, Y" }}</dd>
    <dt>Website</dt>
      <dd>{{ startup.website }}</dd>
    <dt>Contact</dt>
      <dd>{{ startup.contact }}</dd>

      <dt>Tag{{ startup.tags.count|pluralize }}</dt>
        {% for tag in startup.tags.all %}
          <dd><a href="">
            {{ tag.name|title }}
          </a></dd>
        {% endfor %}

  </dl>

  <p>{{ startup.description }}</p>

      {% if startup.newslink_set.all %}
          <section>
            <h3>Recent News</h3>
            <ul>
              {% for newslink in startup.newslink_set.all %}
                <li>
                  <a href="{{ newslink.link }}">
                    {{ newslink.title|title }}</a>
                </li>
              {% endfor %}
            </ul>
          </section>
      {% endif %}

      {% if startup.blog_posts.all %}
          <section>
            <h3>Blog Post{{ startup.blog_posts.all|pluralize }}</h3>
            <ul>
              {% for post in startup.blog_posts.all %}
                <li>
                  <a href="">
                    {{ post.title|title }}</a>
                </li>
              {% endfor %}
            </ul>
          </section>
      {% endif %}

</article>

<article>

  <h2>{{ startup.name }}</h2>
  <dl>
    <dt>Date Founded</dt>
      <dd>{{ startup.founded_date|date:"F jS, Y" }}</dd>
    <dt>Website</dt>
      <dd>{{ startup.website|urlize }}</dd>
    <dt>Contact</dt>
      <dd>{{ startup.contact }}</dd>

      <dt>Tag{{ startup.tags.count|pluralize }}</dt>
        {% for tag in startup.tags.all %}
          <dd><a href="">
            {{ tag.name|title }}
          </a></dd>
        {% endfor %}

  </dl>

  <p>{{ startup.description }}</p>

      {% if startup.newslink_set.all %}
          <section>
            <h3>Recent News</h3>
            <ul>
              {% for newslink in startup.newslink_set.all %}
                <li>
                  <a href="{{ newslink.link }}">
                    {{ newslink.title|title }}</a>
                </li>
              {% endfor %}
            </ul>
          </section>
      {% endif %}

      {% if startup.blog_posts.all %}
          <section>
            <h3>Blog Post{{ startup.blog_posts.all|pluralize }}</h3>
            <ul>
              {% for post in startup.blog_posts.all %}
                <li>
                  <a href="">
                    {{ post.title|title }}</a>
                </li>
              {% endfor %}
            </ul>
          </section>
      {% endif %}

</article>

Use urlize in Startup detail template.
Ch04: Use urlize in Startup detail template.
