anchor.diff:  3+|*Key Prefix:* description_list
   
   |term_font_style
  -|<<font-styles,Font style>>
  +|<<font-styles,Font style>> +
  +(default: normal)
   |description_list:
     term_font_style: italic
   
  
positive.code:   indent: 20
  
  |margin_top
  |<<measurement-units,Measurement>>
  |toc:
    margin_top: 0
  
  
negative.code: 3+|*Key Prefix:* toc_dot_leader
  
  |content
  |Quoted string +
  (default: '. ')
  |toc:
    dot_leader:
      content: ". "
  