class Jekyll::Converters::Markdown::RDiscountParser

def replace_generated_toc(rd, html, toc_token)
  if rd.generate_toc && html.include?(toc_token)
    utf8_toc = rd.toc_content
    utf8_toc.force_encoding("utf-8") if utf8_toc.respond_to?(:force_encoding)
    html.gsub(toc_token, utf8_toc)
  else
    html
  end
end