fix broken link to UniFFI user guide

README.md

@@ -14,7 +14,7 @@
 > A cargo plugin to easily build Swift packages from Rust code
 
 *cargo swift* provides interactive commands for initializing and packaging a Rust library as Swift Package for usage in iOS and macOS apps.
-This plugin uses Mozilla's [UniFFI](https://github.com/mozilla/uniffi-rs) for bridging between Swift and Rust. To learn more about using UniFFI, read its [User Guide](https://mozilla.github.io/uniffi-rs/Overview.html),
+This plugin uses Mozilla's [UniFFI](https://github.com/mozilla/uniffi-rs) for bridging between Swift and Rust. To learn more about using UniFFI, read its [User Guide](https://mozilla.github.io/uniffi-rs/latest/),
 but note that you can **skip** the parts about generating bindings (section 2.4) and building a swift module (sections 10. and 11.) as *cargo swift* already takes care of this!
 
 ![](https://github.com/antoniusnaumann/cargo-swift/blob/main/readme/cargo-swift-demo.gif)