anchor.diff:  Basic Movement
   --------------
   
  - * _space_: select the character under last selection end
  - * _alt-space_: flip the selections direction
  -
    * _h_: select the character on the right of selection end
    * _j_: select the character below the selection end
    * _k_: select the character above the selection end
  
positive.code: line boundaries.
  
  To clear multiple selections, use _space_. To keep only the nth selection
  use _n_ followed by _space_, to remove only the nth selection, use _n_
  followed by _alt-space_.
  
  _alt-k_ allows you to enter a regex and keep only the selections that
  contains a match for this regex. using _alt-K_ you can keep the selections
  
negative.code: 
  for example, _3W_ selects 3 consecutive words and _3w_ select the third word on
  the right of selection end.
  
  Changes
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