app/views/shared/_footer.html.erb
<footer class="footer">
<div class="container">
<div class="container-fluid">
<div class="row">
<div class="col-md-7">© <%= link_to(t('mezuro_team'), '/humans.txt') %> 2013-2016</div>
<div class="col-md-5">
<div class="container-fluid">
<div class="row">
<div class="col-md-3"><%= link_to(image_tag('agplv3-88x31.png'), 'http://www.gnu.org/licenses/agpl-3.0-standalone.html') %></div>
<div class="col-md-3"><%= link_to image_tag('fork-me.png'), 'https://github.com/mezuro/prezento' %></div>
<div class="col-md-6"><%= link_to image_tag('banner-ccsl.png', height: '40', width: '190'), 'http://ccsl.ime.usp.br/' %></div>
</div>
</div>
</div>
</div>
</div>
</div>
</footer>