fix https

src/bank/teller/init.go

@@ -52,7 +52,7 @@ func Init(ctx context.Context) error {
 	defer s.Close()
 	go s.ListenAndServe()
 
-	fmt.Println("Open https://localhost:20000")
+	fmt.Println("Open http://localhost:20000")
 
 	select {
 	case <-ctx.Done():