anchor.diff:    <thead>
     <tr class="blue-header-table">
       <th>Estudante</th>
  +    <th>Nota</th>
       <th>Dados</th>
  -    <th>Nota</th>
       <th>Resumo</th>
       <th>Apresentação</th>
       <% @hubs.each do |hub_name| %>
  
positive.code:             <span class="label label-success pull-right"><%= tcc.grade %></span>
            <% end %>
          <% end %>
        </td>
  
        <td>
  
negative.code:       <td><%= tcc.name %></td>
  
        <td>
          <% if tcc.grade.nil? %>
            <% if tcc.is_ok? && @current_user.orientador? %>
              <a href="#<%= tcc.id %>" role="" class="label label-warning" data-toggle="modal">Avaliar</a>
  