Update multi-platform.md

Author: retyui

packages/react-native-web-docs/src/pages/docs/getting-started/multi-platform.md

@@ -93,8 +93,8 @@ const babelLoaderConfiguration = {
     loader: 'babel-loader',
     options: {
       cacheDirectory: true,
-      // The 'metro-react-native-babel-preset' preset is recommended to match React Native's packager
-      presets: ['module:metro-react-native-babel-preset'],
+      // The '@react-native/babel-preset' preset is recommended to match React Native's packager
+      presets: ['module:@react-native/babel-preset'],
       // Re-write paths to import only the modules needed by the app
       plugins: ['react-native-web']
     }