[docs] [issue33218] Fix instances in documentation where dictionaries are referenced as unordered

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

Would you like to make a pull request or do you prefer for me to assign it to someone else?

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nosy: +rhettinger
versions:  -Python 3.6

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33218>
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