[docs] [issue19454] devguide: Document what a "platform support" is

[anatoly techtonik]

New submission from anatoly techtonik:

As a followup to issue19377 it would be nice if devguide contained a paragraph to resolve the conflicting point provided by http://bugs.python.org/msg187373 and http://bugs.python.org/msg201141 arguments.

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assignee: docs at python
components: Devguide, Documentation
messages: 201762
nosy: docs at python, ezio.melotti, techtonik
priority: normal
severity: normal
status: open
title: devguide: Document what a "platform support" is

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19454>
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