Describe the bug

The Returns section of augment_reverse in pyaptamer/utils/_augment.py
has a dangling word added. on its own line, making the description
grammatically broken and misleading:

Returns
-------
tuple[np.ndarray, ...]
    A tuple of arrays, each containing sequences with their reversed sequences.
    added.

The sentence was split incorrectly — the period after "sequences" ended the
sentence prematurely, leaving "added." as a standalone fragment that makes
no sense.

Expected behavior

The docstring should read as one complete sentence:

Returns
-------
tuple[np.ndarray, ...]
    A tuple of arrays, each containing sequences with their reversed sequences
    appended.

File affected

pyaptamer/utils/_augment.py