Update `usedevelop` doc by referring to PEP-660.#3025

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gaborbernat merged 3 commits intotox-dev:mainfrom tibortakacs:update-usedevelop-doc

Jun 6, 2023

+11-2

Commits on Jun 5, 2023

Refer to PEP-660.
Tibor Takacs
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Add more notes.
Tibor Takacs
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Format fixes.
Tibor Takacs
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