push all exercices

ch3/2/ch3_2.go

@@ -0,0 +1,9 @@
+package main
+
+import "fmt"
+
+func main() {
+	var message string = "Hi 👩 and 👨"
+	var msgRunes []rune = []rune(message)
+	fmt.Println(string(msgRunes[3]))
+}

ch3/2/go.mod

@@ -0,0 +1,3 @@
+module ch3_2
+
+go 1.25.0