Update readme to include @Default macro

readme.md

@@ -181,7 +181,7 @@ Defaults[isUnicorn]
 
 ### SwiftUI support
 
-#### `@Default`
+#### `@Default` in `View`
 
 You can use the `@Default` property wrapper to get/set a `Defaults` item and also have the view be updated when the value changes. This is similar to `@State`.
 
@@ -207,6 +207,22 @@ Note that it's `@Default`, not `@Defaults`.
 
 You cannot use `@Default` in an `ObservableObject`. It's meant to be used in a `View`.
 
+#### `@Default` in `@Observable`
+
+With the `@Default` macro, you can use `Defaults` inside `@Observable` classes that use the [Observation](https://developer.apple.com/documentation/observation) framework. Doing so is as simple as importing `DefaultsMacros` as adding two lines to a property (note that adding `@ObservationIgnored` is needed to prevent clashes with `@Observable`):
+
+```swift
+import Defaults
+import DefailtsMacros
+
+@Observable
+final class UnicornManager {
+	@Default(.hasUnicorn)
+	@ObservationIgnored
+	var hasUnicorn: Bool
+}
+```
+
 #### `Toggle`
 
 There's also a `SwiftUI.Toggle` wrapper that makes it easier to create a toggle based on a `Defaults` key with a `Bool` value.