Change string

---

examples/change-string/change_string.go

package main

import (
    "fmt"
)

func main() {
    text := "Hello World!"
    fmt.Println(text)

    // text[5] = "Y" // cannot assign to text[5]

    text = text[:5] + "-" + text[6:]
    fmt.Println(text)
}

Hello World!
Hello-World!