message: doc review: reformulate the copy notes
diff: @@ -48,8 +48,8 @@ cdef class SimplexTree:
  :rtype: SimplexTree
  :raises TypeError: In case `other` is neither `None`, nor a `SimplexTree`.
  - :note: If the `SimplexTree` is a copy, it requires :func:`compute_persistence` to be launched again as the
  - persistence result is not copied.
  + :note: If the `SimplexTree` is a copy, the persistence information is not copied. If you need it in the clone,
  + you have to call :func:`compute_persistence` on it even if you had already computed it in the original.
  """
  # The real cython constructor
  @@ -86,7 +86,8 @@ cdef class SimplexTree:
  :returns: A simplex tree that is a deep copy of itself.
  :rtype: SimplexTree
  - :note: copy requires :func:`compute_persistence` to be launched again as the persistence result is not copied.
  + :note: The persistence information is not copied. If you need it in the clone, you have to call
  + :func:`compute_persistence` on it even if you had already computed it in the original.
  """
  stree = SimplexTree()
  cdef Simplex_tree_interface_full_featured* stree_ptr
  