Mod site for C-term modifications

[mo-sameh]

To clarify, I just want to confirm: In Alphabase format, shouldn't C-terminal modifications have a mod site of -1 e.g. check following docstring while mod site 1 is reserved for non-terminal modifications of the first amino acid? If so, is this just a typo in the following docstring?

alphapeptdeep/peptdeep/model/featurize.py

Lines 16 to 23 in 5cb3d2c

	def parse_mod_feature(
	nAA: int, mod_names: List[str], mod_sites: List[int]
	) -> np.ndarray:
	"""
	Get modification feature of a given peptide (len=nAA).
	Note that `site=0` is for peptide N-term modification,
	`site=1` is for peptide C-term modification, and
	`1<=site<=nAA` is for residue modifications on the peptide.