message: udpated browser js docs
diff: @@ -61,6 +61,7 @@ or
  Use on browser with ES6 modules:
  ```javascript
  +<script type="module">
  import { BrowserQRCodeReader } from '@zxing/library';
  const codeReader = new BrowserQRCodeReader();
  @@ -73,11 +74,14 @@ try {
  }
  console.log(result);
  +</script>
  ```
  Use on browser with AMD:
  ```javascript
  +<script type="text/javascript" src="https://unpkg.com/requirejs"></script>
  +<script type="text/javascript">
  require(['@zxing/library'], ZXing => {
  const codeReader = new ZXing.BrowserQRCodeReader();
  const img = document.getElementById('img');
  @@ -90,15 +94,13 @@ require(['@zxing/library'], ZXing => {
  console.log(result);
  });
  +</script>
  ```
  Use on browser with UMD:
  ```html
  -<script
  - type="text/javascript"
  - src="https://unpkg.com/@zxing/library@latest"
  -></script>
  +<script type="text/javascript" src="https://unpkg.com/@zxing/library@latest"></script>
  <script type="text/javascript">
  window.addEventListener('load', () => {
  const codeReader = new ZXing.BrowserQRCodeReader();
  @@ -115,7 +117,7 @@ Use on browser with UMD:
  </script>
  ```
  -Use outside the browser with vanilaJS:
  +Use outside the browser with CommonJS:
  ```javascript
  const { MultiFormatReader, BarcodeFormat } = require('@zxing/library';);
  