=html_escape(_('To use the additional formats, you must start the required %{container_link_start}companion containers%{container_link_end}.'))%{container_link_start: container_link_start,container_link_end: '</a>'.html_safe}
=html_escape(_('To use the additional formats, you must start the required %{container_link_start}companion containers%{container_link_end}.'))%{container_link_start: container_link_start,container_link_end: '</a>'.html_safe}