improved example

README.md

@@ -2,6 +2,7 @@
 
 Yet another in-memory Go PubSub library.
 I started to develop what is now GubGub in one of my personal projects but I soon found myself using it in other completely unrelated projects and I thought it could be a nice thing to share.
+It might be very tailored to my personal preferences but my focus was concurrency safety and ease of usage.
 
 ## Getting started
 
@@ -26,15 +27,21 @@ type MyMessage struct {
 	Name string
 }
 
+func consumer(msg MyMessage) {
+    fmt.Printf("Hello %s", msg.Name)
+}
+
 func main() {
 	ctx, cancel := context.WithTimeout(context.TODO(), time.Second)
 	defer cancel()
 
 	topic := gubgub.NewAsyncTopic[MyMessage](ctx)
 
-	topic.Subscribe(gubgub.Forever(func(msg MyMessage) {
-		fmt.Printf("Hello %s", msg.Name)
-	}))
+	topic.Subscribe(gubgub.Forever(consumer))
+
+    // The AsyncTopic doesn't wait for the subscriber to be registered so, for the purposes of this
+    // example, we sleep on it.
+	time.Sleep(time.Millisecond)
 
 	topic.Publish(MyMessage{Name: "John Smith"})