<% content_for(:breadcrumb) do %>
  <a href="<%= root_path %>"><%= t('layouts.base.home') %></a>
  <% categories.each do |category| %>
    <span class="breadcrumb__divider">&#187;</span>
    <a>
      <%= link_to category.title, category.path %>
    </a>
  <% end %>
<% end %>

<% content_for(:breadcrumb) do %>
  <a href="<%= root_path %>"><%= t('layouts.base.home') %></a>
  <% categories.each do |category| %>
    <span class="breadcrumb__divider">&#187;</span>
      <span itemscope itemtype="http://data-vocabulary.org/Breadcrumb">
        <%= link_to category.path, itemprop: "url" do %>
          <span itemprop="title"><%= category.title %></span>
        <% end %>
      </span>
  <% end %>
<% end %>

Add in the microdata for the breadcrumbs
Add in the microdata for the breadcrumbs
