docs: add missing return definitions for awaitable functions [fixes #1777]

caolan / async

Async utilities for node and the browser

http://caolan.github.io/async/

MIT License

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Closed hargasinski closed 2 years ago

hargasinski commented 2 years ago

Hey! It's been a while since I contributed to the repo, so I thought I would start with a couple of quick doc updates.

This PR adds the missing return definitions for race and waterfall and updates the detect* docs to match the style of all the other functions.