anchor.diff:        <section class="hub">
   
           <div class="hub-header">
  -          <h2><%= hub.hub_definition.title %></h2>
  +          <h2><%= hub.hub_definition.subtitle %></h2>
           </div>
   
           <!--diaries-->
  
positive.code: 
    <!--presentation-->
    <section class="presentation">
      <h2>Apresentação</h2>
  
      <%= @presentation.content.try(:html_safe) if @presentation %>
    </section>
  
negative.code: 
          <!--reflections-->
          <div class="reflections">
            <h3>Síntese reflexiva: <%= hub.reflection_title %></h3>
  
            <%= hub.reflection.try(:html_safe) %>
          </div>
  