app/views/admin/inventory/suppliers/edit.html.erb
<h3>Editing Supplier - <%= @supplier.name %></h3>
<%= form_for @supplier, url: admin_inventory_supplier_path(@supplier) do |form| %>
<%= render partial: '/admin/inventory/suppliers/form', locals: { form: form } %>
<%= submit_tag "Update", class: "button" %>
<% end %>