Update README.md

Author: ygit

README.md

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     [KeyboardShortcuts — User-customizable global keyboard shortcuts for your macOS app](https://github.com/sindresorhus/KeyboardShortcuts)
 
 34. 📹 [Your First iOS and SwiftUI App - Ray Wenderlich](https://www.raywenderlich.com/4919757-your-first-ios-and-swiftui-app)
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 35. 💻 [SVG to SwiftUI Shape Converter](https://github.com/quassummanus/SVG-to-SwiftUI)
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+36. 💻 [A Demo App forSwiftUI System Components & Interactions based on iOS 14, macOS Big Sur, watchOS 7, and tvOS 14](https://github.com/jordansinger/SwiftUI-Kit)