[docs] [issue15231] update PyPI upload doc to say --no-raw passed to rst2html.py

[Eli Bendersky]

Changes by Eli Bendersky <eliben at gmail.com>:


----------
nosy:  -eli.bendersky

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15231>
_______________________________________