Misago/misago/templates/misago/thread/breadcrumbs.html

<div class="page-breadcrumbs">
  <div class="container">
    <ol class="breadcrumb" itemscope itemtype="http://schema.org/BreadcrumbList">
      {% for node in breadcrumbs %}
        <li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
          <a href="{{ node.get_absolute_url }}" itemscope itemtype="http://schema.org/Thing" itemprop="item">
            <span itemprop="name">{{ node.name }}</span>
          </a>
          <meta itemprop="position" content="{{ forloop.counter }}" />
        </li>
      {% endfor %}
    </ol>
  </div>
</div>