Examples in ch1-05 are wrong about go-advanced

[anhldbk]

@cuonglm nice catch. Any recommendation? Pls make a PR if you can.

[cuonglm]

@anhldbk The fix is simple:

func main() {
	done := make(chan struct{})
	go func() {
		defer close(done)
		fmt.Println("Hello from another goroutine")
	}()
	fmt.Println("Hello from main goroutine")
	<-done
}

But I don't know the process of generating the documentation.

[anhldbk]

@cuonglm The issue is fixed. Thanks for reporting.