def render_layout(output, layout, info)
      payload["content"] = output
      payload["layout"]  = Utils.deep_merge_hashes(layout.data, payload["layout"] || {})

      render_liquid(
        layout.content,
        payload,
        info,
        layout.relative_path
      )
    end
def render_layout(output, layout, info)
      payload["content"] = output
      payload["layout"]  = Utils.deep_merge_hashes(layout.data, payload["layout"] || {})

      render_liquid(
        layout.content,
        payload,
        info,
        layout.relative_path
      )
    end
Render layout content into document.output

 Returns String rendered content