anchor.diff:    <thead>
       <tr>
         <th>Title</th>
  +      <th>Created at</th>
         <th>Content</th>
         <th colspan="3"></th>
       </tr>
  
positive.code:     <% @posts.each do |post| %>
        <tr>
          <td><%= post.title %></td>
          <td><%= post.content %></td>
          <td><%= link_to 'Show', post %></td>
          <td><%= link_to 'Edit', edit_post_path(post) %></td>
  
negative.code: <br>
  
  <%= link_to 'New Post', new_post_path %>
  
  
  
  