code: func collectScannerTitleDescription(headers []string) (title, desc []string) {
  	hdrs := cleanupScannerLines(headers, rxUncommentHeaders, nil)
  
  	idx := -1
  	for i, line := range hdrs {
  		if strings.TrimSpace(line) == "" {
  			idx = i
  			break
  		}
  	}
  
  	if idx > -1 {
  		title = hdrs[:idx]
  		if len(hdrs) > idx+1 {
  			desc = hdrs[idx+1:]
  		} else {
  			desc = nil
  		}
  		return
  	}
  
  	if len(hdrs) > 0 {
  		line := hdrs[0]
  		if rxPunctuationEnd.MatchString(line) {
  			title = []string{line}
  			desc = hdrs[1:]
  		} else {
  			desc = hdrs
  		}
  	}
  
  	return
  }
docs: // a shared function that can be used to split given headers
  // into a title and description