message: docs(api): Fix new_tip option in legacy api `transfer` docstring
diff: @@ -1225,10 +1225,11 @@ class Pipette:
  Single :any:`Placeable` or list of :any:`Placeable`s, where
  liquid will be :any:`dispense`ed to.
  - new_tip : number
  - The number of clean tips this transfer command will use. If 0,
  - no tips will be picked up nor dropped. If 1, a single tip will be
  - used for all commands.
  + new_tip : str
  + The number of clean tips this transfer command will use. If
  + 'never', no tips will be picked up nor dropped. If 'once', a
  + single tip will be used for all commands. If 'always', a new tip
  + will be used for each transfer. Default is 'once'.
  trash : boolean
  If `False` (default behavior) tips will be returned to their
  