update demo

example/lib/main.dart

@@ -36,7 +36,7 @@ class _MyAppState extends State<MyApp> {
         appId: "wxd930ea5d5a258f4f",
         doOnAndroid: true,
         doOnIOS: true,
-        enableMTA: false);
+        universalLink: "https://your.univerallink.com/link/");
     var result = await fluwx.isWeChatInstalled();
     print("is installed $result");
   }