title: How to keep Django from escaping HTML in ModelAdmin
body: <p>I have this class to configure <code>django.contrib.admin</code> for my <code>Stream</code> model.</p>
  
  <pre><code>class StreamAdmin(admin.ModelAdmin):
      def stream_title(instance):
          return instance.info.title
  
      def network_name(instance):
          return '&lt;img src="%s" /&gt;' % instance.network.image_url
  
      fieldsets = (
          (None, {
              'fields' : ('name', 'network', 'score', 'custom_url')
          }),
  
      )
  
      list_display = ('name', stream_title, network_name, 'online', 'score')
  
      ordering = ('name', 'score')
  </code></pre>
  
  <p>The network_name function returns HTML, but it's escaped. How can I stop that?</p>