anchor.diff:  `s` and `S` share the search pattern with `/`, and hence entering an empty
   pattern uses the last one.
   
  -As a convenience, `alt-s` allows you to split the current selections on
  +As a convenience, `<a-s>` allows you to split the current selections on
   line boundaries.
   
   To clear multiple selections, use `space`. To keep only the nth selection
  -use `n` followed by `space`, in order to remove a selection, use `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
  +use `n` followed by `space`, in order to remove a selection, use `<a-space>`.
  +
  +`<a-k>` allows you to enter a regex and keep only the selections that
  +contains a match for this regex. using `<a-K>` you can keep the selections
   not containing a match.
   
   `C` copies the current selection to the next line (or lines if a count is given)
  -`alt-C` does the same to previous lines.
  +`<a-C>` does the same to previous lines.
   
   `$` allows you to enter a shell command and pipe each selections to it.
   Selections whose shell command returns 0 will be kept, other will be dropped.
  
positive.code:  * `'`: rotate selections (the main selection becomes the next one)
  
   * `;`: reduce selections to their cursor
   * `alt-;`: flip the selections direction
   * `alt-:`: ensure selections are in forward direction (cursor after anchor)
  
   * `alt-.`: repeat last object or `f`/`t` selection command.
  
  
  A word is a sequence of alphanumeric characters or underscore, a WORD is a
  
negative.code: push the previous selections to the client's jump list. It is possible
  to forward or backward in the jump list using:
  
   * `<c-i>`: Jump forward
   * `<c-o>`: Jump backward
   * `<c-s>`: save current selections
  
  Multi Selection
  ~~~~~~~~~~~~~~~
  