ruby - Why images are not showing in my rails basic app -

my index.html.erb code -

<h1>listing products</h1>  <table border="1">  <% @products.each |product| %>   <tr>     <td><%= product.title %></td>     <td><%= product.description %></td>     <td><%= image_tag(product.image_url, :class => 'list_image') %></td>     <td><%= product.price %></td>     <td><%= link_to 'show', product %></td>     <td><%= link_to 'edit', edit_product_path(product) %></td>     <td><%= link_to 'destroy', product, method: :delete, data: { confirm: 'are sure?' } %></td>   </tr> <% end %> </table>  <br />  <%= link_to 'new product', new_product_path %> 

and images under app\assets\images..but still images not appearing on front end.

when firebug it, believe image tag correctly forming...let me know missing in part.

<img src="/images/product1.jpg" class="list_image" alt="product1"> 

screenshot -

images in place -

let me know doing wrong , how fix it.

edit

github.com/swapnesh/depot

let me know why not working in case.

although changing /images/product1.jpg to /assets/product1.jpg makes working.

if using asset pipeline http://guides.rubyonrails.org/asset_pipeline.html,

the image path should /assets/product1.jpg instead of /images/product1.jpg

if not using asset pipeline, move images folder public/images