[docs] [issue26304] Fix “allows to <verb>” in documentation

[Eric V. Smith]

Eric V. Smith added the comment:

I agree that the "to xxx" changes look good. And the handful of other corrections look good, too.

I left a review comment with one typo I found.

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nosy: +eric.smith

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26304>
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