anchor.diff:                  <%= image_tag("seal_small.png", :alt => "Hume-Fogg Magnet seal") %>
                 </li>
   
  -              <% unless controller_name == "user_sessions" %>
  +              <% unless controller_name.start_with? "user" %>
                   <li class="nav-link">
                     <%= link_to "I'm a returning nerd!", new_user_session_path %>
                   </li>
  
positive.code:     <p> </p>
      <footer class="centered-navigation">
        <div class="centered-navigation-wrapper">
          <ul class="centered-navigation-menu">
  <!--           <li class="nav-link">
              <%= link_to "Katye Russell, 2015", "https://katyerussell.com" %>
            </li>
            <li class="nav-link">
            &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;  &nbsp;
            </li> -->
            <li class="nav-link">
              <%= link_to "View the code on Github", "https://github.com/complikatyed/quizlytics" %>
            </li>
          </ul>
        </div>
  
negative.code:         <nav role="navigation">
            <ul class="centered-navigation-menu">
              <% if !logged_in? %>
                <% unless controller_name.start_with? "user" %>
                  <li class="nav-link">
                    <%= link_to "I'm a new nerd!", new_user_path %>
                  </li>
  