Update README.md

Signed-off-by: Gray Campbell <12163070+graycampbell@users.noreply.github.com>

Author: graycampbell

README.md

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+# SwiftSyntaxSugar
+
+SwiftSyntaxSugar is a library that provides syntactic sugar and helpful extensions for [SwiftSyntax](https://github.com/swiftlang/swift-syntax). The purpose of this library is to improve the readability and maintainability of code written using SwiftSyntax.
+
+## Installation
+
+To add SwiftSyntaxSugar to a Swift package manifest file:
+- Add the SwiftSyntaxSugar package to your package's `dependencies`:
+  ```swift
+  .package(
+      url: "https://github.com/fetch-rewards/SwiftSyntaxSugar.git",
+      from: "<#latest SwiftSyntaxSugar tag#>"
+  )
+  ```
+- Add the SwiftSyntaxSugar product to your target's `dependencies`:
+  ```swift
+  .product(name: "SwiftSyntaxSugar", package: "SwiftSyntaxSugar")
+  ```
+
+## License
+
+This library is released under the MIT license. See [LICENSE](https://github.com/fetch-rewards/SwiftSyntaxSugar/blob/main/LICENSE) for details.