Update README.md

fix example on how to deserialize key-value JSON

README.md

@@ -1278,18 +1278,18 @@ package main
 
 import (
 	"fmt"
-	"github.com/emirpasic/gods/lists/arraylist"
+	"github.com/emirpasic/gods/maps/hashmap"
 )
 
 func main() {
-	list := arraylist.New()
+	hm := hashmap.New()
 
-	json := []byte(`["a","b"]`)
-	err := list.FromJSON(json)
+	json := []byte(`{"a":"1","b":"2"}`)
+	err := hm.FromJSON(json)
 	if err != nil {
 		fmt.Println(err)
 	}
-	fmt.Println(list) // ArrayList ["a","b"]
+	fmt.Println(hm) // HashMap map[b:2 a:1]
 }
 ```