app/views/roles/index.html.erb
<h1 class="entry-title">Listing Roles</h1>
<table>
<thead>
<tr>
<th>Description</th>
<th colspan="3"></th>
</tr>
</thead>
<tbody>
<% @roles.each do |role| %>
<tr>
<td><%= role.description %></td>
<td><%= link_to 'Show', role %></td>
<td><%= link_to 'Edit', edit_role_path(role) %></td>
<td><%= link_to 'Destroy', role, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
</tbody>
</table>
<br>
<%= link_to 'New Role', new_role_path %>