def render(document)
      if Tolaria.config.markdown_renderer.nil?
        return simple_format(document)
      else
        @markdown_renderer ||= Tolaria.config.markdown_renderer.constantize
        return @markdown_renderer.render(document)
      end
    end
def render(document)
      if Tolaria.config.markdown_renderer.nil?
        return simple_format(document)
      else
        @markdown_renderer ||= Tolaria.config.markdown_renderer.constantize
        return @markdown_renderer.render(document)
      end
    end
Calls the configured Markdown renderer, if none exists
 then uses `simple_format` to return more than nothing.