anchor.diff:  <p id="notice"><%= notice %></p>
  -
   <h1>Listing Distribution Groups</h1>
  -
   <table>
     <thead>
       <tr>
  
positive.code: 
  <br>
  
  <%= link_to 'New Distribution group', new_dist_group_path %>
  
negative.code:       <tr>
          <td><%= link_to dist_group.dist_name, dist_group %></td>
          <td><%= link_to 'Show', dist_group %></td>
          <td><%= link_to 'Destroy', dist_group, method: :delete %></td>
        </tr>
      <% end %>
    </tbody>
  