anchor.diff:          +cell Rendered HTML markup.
           +cell
   
  -+h(2, "options") Visualiser options
  ++h(2, "options") Visualizer options
   
   p
       |  The #[code options] argument lets you specify additional settings for
  -    |  each visualiser. If a setting is not present in the options, the default
  +    |  each visualizer. If a setting is not present in the options, the default
       |  value will be used.
   
  -+h(3, "options-dep") Dependency Visualiser options
  ++h(3, "options-dep") Dependency Visualizer options
   
   +aside-code("Example").
       options = {'compact': True, 'color': 'blue'}
  
positive.code:     +row
          +cell #[code options]
          +cell dict
          +cell #[+a("#options") Visualiser-specific options], e.g. colors.
          +cell #[code {}]
  
      +footrow
  
negative.code:     +row
          +cell #[code docs]
          +cell list or #[code Doc]
          +cell Document(s) to visualize.
          +cell
  
      +row
          +cell #[code style]
          +cell unicode
          +cell Visualization style, #[code 'dep'] or #[code 'ent'].
          +cell #[code 'dep']
  
      +row
  