Reconcile module docs and release materials

outcome.go

@@ -54,7 +54,9 @@ type Diagnostic struct {
 
 // Acquired pairs a provider value with diagnostics emitted during acquisition.
 type Acquired[T any] struct {
-	Value       T
+	// Value is the value returned by the acquisition callback.
+	Value T
+	// Diagnostics are retained for delivery by the invocation coordinator.
 	Diagnostics []Diagnostic
 }