code: func ConvertURL(input io.Reader, readability bool) (string, map[string]string, error) {
  	meta := make(map[string]string)
  
  	buf := new(bytes.Buffer)
  	_, err := buf.ReadFrom(input)
  	if err != nil {
  		return "", nil, err
  	}
  
  	g := goose.New()
  	article, err := g.ExtractFromURL(buf.String())
  	if err != nil {
  		return "", nil, err
  	}
  
  	meta["title"] = article.Title
  	meta["description"] = article.MetaDescription
  	meta["image"] = article.TopImage
  
  	return article.CleanedText, meta, nil
  }
docs: // ConvertURL fetches the HTML page at the URL given in the io.Reader.