Update react-native.md

Author: jimchou-dev

articles/communication-services/quickstarts/chat/react-native.md

@@ -44,20 +44,23 @@ After you [initialize your React Native project](https://reactnative.dev/docs/en
    npm install react-native-url-polyfill --save-dev
    ```
 
-1. Update _metro.config.js_ to use React Native-compatible Node Core modules:
+1. Create or update the _metro.config.js_ file in the same directory as your _app.js_ file to configure React Native-compatible Node Core modules. If the file doesn’t exist, create a new one with the following content:
 
    ```javascript
-   module.exports = {
-       // ...
-       resolver: {
-           extraNodeModules: {
-               ...require('stream-browserify'),
-               ...require('node-libs-react-native'),
-               net: require.resolve('node-libs-react-native/mock/net'),
-               tls: require.resolve('node-libs-react-native/mock/tls')
-       }
+   // metro.config.js
+
+   const { getDefaultConfig } = require('expo/metro-config');
+   
+   const config = getDefaultConfig(__dirname);
+   
+   config.resolver.extraNodeModules = {
+     ...require('node-libs-react-native'),
+     stream: require.resolve('stream-browserify'),
+     net: require.resolve('node-libs-react-native/mock/net'),
+     tls: require.resolve('node-libs-react-native/mock/tls'),
    };
-   }
+   
+   module.exports = config;
    ```
 
 1. Add the following `import` commands at the top of your entry point file: