Update README.md

ChrisLinn · web-flow · commit d13930f3d6f4 · 2019-07-17T22:14:15.000+08:00
diff --git a/README.md b/README.md
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 # stackoverflow-rust-top-qa
 Inspired by https://github.com/giantray/stackoverflow-java-top-qa.
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++ [Why is “&&” being used in closure arguments?](https://stackoverflow.com/questions/43828013/why-is-being-used-in-closure-arguments)
