anchor.diff:                     <% end %>
                   </li>
                   <li>
  -                    <a href="#"><i class="fa fa-fw fa-folder"></i> About</a>
  +                    <a href="#"><i class="fa fa-fw fa-puzzle-piece"></i> About</a>
                   </li>
                   <li>
  -                    <a href="#"><i class="fa fa-fw fa-file-o"></i> Team</a>
  +                    <a href="#"><i class="fa fa-fw fa-users"></i> Team</a>
                   </li>
                   <li>
  -                    <a href="#"><i class="fa fa-fw fa-cog"></i> Contact</a>
  +                    <a href="#"><i class="fa fa-fw fa-info-circle"></i> Contact</a>
                   </li>
                   <% if user_signed_in? %>
                   </li>
  
positive.code:                 </li>
                  <li>
                    <%= link_to  new_user_registration_path do %>
                    <i class="fa fa-fw fa-user-plus"></i>Sign Up
                    <% end %>
                  </li>
                  <% end %>
  
negative.code:                  </li>
                  <li>
                    <%= link_to destroy_user_session_path, :method => :delete do %>
                      <i class="fa fa-fw fa-power-off"></i> Sign Out 
                    <% end %> 
                  </li>
                  <% else %><hr>
  