docs: add sandbox demo

Author: codenaz

Diff for: README.md

@@ -8,6 +8,8 @@ Requires react >= 16.8.0
 
 This package makes use of [react-image-cropper](https://github.com/DominicTobias/react-image-crop)
 
+**Try it on [codesandbox](https://codesandbox.io/p/sandbox/trusting-mendel-hg4jml?file=%2Fsrc%2FApp.js%3A20%2C16)**
+
 ## Installation
 
 Run the following command:

Diff for: src/App.js

@@ -1,6 +1,6 @@
 import React, { useState } from 'react';
-import MultiImageInput from './lib/multi-image-input';
-// import MultiImageInput from 'react-multiple-image-input';
+// import MultiImageInput from './lib/multi-image-input';
+import MultiImageInput from 'react-multiple-image-input';
 
 function App() {
   const crop = {