[docs] [issue16682] Document that audioop works with bytes, not strings

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


----------
resolution:  -> fixed
stage: commit review -> committed/rejected
status: open -> closed

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16682>
_______________________________________