Typographical mistake in tuples.md

[b0id]

Line:46
println!("Uhe reversed pair is {:?}", reverse(pair));

"Uhe"--->"The"

[rustbot]

Failed to set assignee to marioidival: cannot assign: HTTP status client error (403 Forbidden) for url (https://api.github.com/repos/rust-lang/rust-by-example/issues/1685/assignees)

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[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @marioidival (or someone else) soon.

[b0id]

@marioidival What are the criteria to get a a cool Rust contributor Github badge?