fix to send action (#2726)

Sources/ComposableArchitecture/Documentation.docc/Articles/SwiftConcurrency.md

@@ -62,7 +62,7 @@ variable name for the capture:
 ```swift
 return .run { [count = state.count] send in
   try await Task.sleep(for: .seconds(1))
-  return .delayed(count)  // ✅
+  await send(.delayed(count))  // ✅
 }
 ```