[docs] [issue5501] Update multiprocessing docs re: freeze_support

[Berker Peksag]

Berker Peksag added the comment:

Thanks Davin and Camilla.

----------
nosy: +berker.peksag
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5501>
_______________________________________