add missing derive(Debug) in lib.rs docs

iced-rs / iced

A cross-platform GUI library for Rust, inspired by Elm

https://iced.rs

MIT License

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Closed JL710 closed 2 weeks ago

JL710 commented 2 weeks ago

The dervice(Debug) line is missing in the lib.rs. It already exists in the README.md.

This PR adds that missing line.