userName string example for SayHello function

functions/demo1.go

@@ -7,6 +7,6 @@ func Addition(number1 int, number2 int) int{
 	return total
 }
 
-func SayHello() {
-	fmt.Println("Hello There !")
+func SayHello(userName string) {
+	fmt.Println("Hello There !", userName)
 }

main.go

@@ -17,7 +17,7 @@ func main() {
 	loops.Demo5()
 	arrays.Demo4()
 	slices.Demo2()
-	functions.SayHello()
+	functions.SayHello("Mert Gör")
 	// functions.Addition(2,6)
 	var total = functions.Addition(3,8)
 	fmt.Println(total)