anchor.diff:      <li class="divider"></li>
     <% end %>
   
  -  <li>
  -    <%= link_to 'https://docs.google.com/forms/d/e/1FAIpQLSe0jnqJlcPJDqwogGere5j8-8F1nSGGYkzbsI-XkOeMnGwLrA/viewform', target: '_new' do %>
  -      <i class="material-icons left">feedback</i>
  -      Report a problem
  -    <% end %>
  -  </li>
  -  <li>
  -    <%= link_to 'https://docs.google.com/forms/d/e/1FAIpQLScOhSMdDqWqJu9HGPQdmd0R9s90_AcSo0g6_Nc1qNjQIbSaXA/viewform', target: '_new' do %>
  -      <i class="material-icons left">feedback</i>
  -      Request a feature
  -    <% end %>
  -  </li>
  -  <li>
  -    <%= link_to 'https://docs.google.com/forms/d/e/1FAIpQLScZWEVMgm8hBWIIVj1LPzo0GqflmWUrLQlc4TAYqsaS087oAA/viewform', target: '_new' do %>
  -      <i class="material-icons left">feedback</i>
  -      Leave feedback
  -    <% end %>
  -  </li>
     <li class="divider"></li>
     <li>
       <%= link_to notebook_export_path do %>
  
positive.code: 
        <ul class="right">
          <% if user_signed_in? %>
          <li>
            <a class="dropdown-button tooltipped" href="#!" data-activates="desktop-user-dropdown" data-position="bottom" data-delay="100" data-tooltip="Your content">
              <div class="hide-on-med-and-up"><i class="material-icons">book</i></div>
  
negative.code:       Notebook downloads
      <% end %>
    </li>
    <li>
      <%= link_to destroy_user_session_path do %>
        <i class="material-icons left">power_settings_new</i>
  