app/views/layouts/_footer.html.erb
<footer class="<%= footer_class %>">
<div class="row">
<a class="logo-footer" href="http://epfl.ch/">
<%= image_tag 'misc/EPFL_Logo_Digital_RGB_PROD.png' %>
</a>
<p class="copyright">Ⓒ 2018 crowdAI</p>
<ul class="social">
<li>
<a href="https://twitter.com/crowd_ai">
<i class="fa fa-twitter fa-lg" aria-hidden="true"></i>
</a>
</li>
<li>
<a href="https://github.com/crowdAI">
<i class="fa fa-github fa-lg" aria-hidden="true"></i>
</a>
</li>
</ul>
<ul class="links">
<li><%= link_to 'FAQ', faq_path %></li>
<li><%= link_to 'Contact', contact_path %></li>
<li><%= link_to 'Privacy', privacy_path %></li>
<li><%= link_to 'Terms of Service', terms_path %></li>
<li><%= link_to 'Cookie consent', cookies_path %></li>
</ul>
</div>
</footer>