update package.json

Author: thanhngch

Readme.md

@@ -1,6 +1,12 @@
+## Installation
+
+`npm i js-validate-type --save`
+
 ## How to using
 
 ```js
+import { Type, string } from 'js-validate-type';
+
 const Person = new Type({
   name: string,
   books: [string],

package.json

@@ -18,8 +18,9 @@
     "type validate"
   ],
   "author": "Nguyễn Chí Thanh",
+  "repository": "https://github.com/thanhngch/js-validate-type",
   "engines": {
-    "node": ">=10"
+    "node": ">=8"
   },
   "files": [
     "build"