[docs] [issue18705] Fix arround 100 typos/spelling mistakes

[Ezio Melotti]

Ezio Melotti added the comment:

Both AE and BE are OK, as long as each document is internally consistent.  For new documents I think AE is preferred, but not forced.

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nosy: +ezio.melotti
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18705>
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