app/views/users/edit.html.erb
<h1>Editing User</h1>
<hr>
<%= render 'form' %>
<div class="text-center well well-lg col-md-offset-2 col-md-3">
<div class="col-md-3 col-md-offset-2">
<%= link_to "Delete User", user_path(@user), class: "btn btn-danger", :method => :delete, data: {confirm: "Are you sure?"} %>
</div>
</div>