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

[Roundup Robot]

Roundup Robot added the comment:

New changeset 3a08d766eee3 by Eli Bendersky in branch 'default':
Issue #15231: rephrase the last paragraph slightly
http://hg.python.org/cpython/rev/3a08d766eee3

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nosy: +python-dev

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