<!DOCTYPE html>
<html>
<head>
  <title>TheFeels</title>
  <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
  <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
  <%= csrf_meta_tags %>
</head>
<body>
<div class='container'>
  <%= link_to 'TheFeels', edit_user_path(current_user) %>
  <%= yield %>
</div>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
  <title>TheFeels</title>
  <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
  <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
  <%= csrf_meta_tags %>
</head>
<body>
<div class='container'>
  <% if current_user %>
    <%= link_to 'TheFeels', edit_user_path(current_user) %>
  <% end %>
  <%= yield %>
</div>
</body>
</html>

Add conditional to check for current user
Add conditional to check for current user
