Revert Swift 6 restriction

Author: danielsaidi

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.0
+// swift-tools-version: 5.9
 
 import PackageDescription
 

README.md

@@ -4,7 +4,7 @@
 
 <p align="center">
     <img src="https://img.shields.io/github/v/release/danielsaidi/RichTextKit?color=%2300550&sort=semver" alt="Version" />
-    <img src="https://img.shields.io/badge/Swift-6.0-orange.svg" alt="Swift 6.0" />
+    <img src="https://img.shields.io/badge/Swift-5.9-orange.svg" alt="Swift 5.9" />
     <img src="https://img.shields.io/badge/platform-SwiftUI-blue.svg" alt="Swift UI" title="Swift UI" />
     <img src="https://img.shields.io/github/license/danielsaidi/RichTextKit" alt="MIT License" />
     <a href="https://twitter.com/danielsaidi"><img src="https://img.shields.io/twitter/url?label=Twitter&style=social&url=https%3A%2F%2Ftwitter.com%2Fdanielsaidi" alt="Twitter: @danielsaidi" title="Twitter: @danielsaidi" /></a>

RELEASE_NOTES.md

@@ -6,6 +6,16 @@ Until then, minor updates may remove deprecated features and introduce breaking
 
 
 
+## 1.1.1
+
+This release reverts the Swift 6 restriction.
+
+The library is still ready for Swift 6, but will not require it due to compatibility issues.
+
+This version lets you keep using RichTextKit with Xcode 15.
+
+
+
 ## 1.1
 
 This release makes RichTextKit use Swift 6.