Minor tweaks

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.2
+// swift-tools-version:5.3
 import PackageDescription
 
 let package = Package(

Sources/Defaults/UserDefaults.swift

@@ -140,6 +140,7 @@ extension UserDefaults {
 	- Note: This only removes user-defined entries. System-defined entries will remain.
 	*/
 	public func removeAll() {
+		// We're not using `.removePersistentDomain(forName:)` as it requires knowing the suite name and also because it doesn't emit change events for each key, but rather just `UserDefaults.didChangeNotification`, which we don't subscribe to.
 		for key in dictionaryRepresentation().keys {
 			removeObject(forKey: key)
 		}