Empty Map with make

---

examples/map-with-make/map_with_make.go

package main

import "fmt"

func main() {
    grades := make(map[string]int)
    fmt.Printf("%T\n", grades)

    grades["Mary"] = 99
    grades["Jane"] = 88
    grades["Bob"] = 93

    fmt.Println(grades)
}

map[string]int
map[Bob:93 Jane:88 Mary:99]