Update README-ZH.md

Author: weikx

README-ZH.md

@@ -60,7 +60,7 @@ void getHttp() async {
 ```dart
 Response response;
 Dio dio = new Dio();
-response = await dio.get("/test?id=12&name=wendu")
+response = await dio.get("/test?id=12&name=wendu");
 print(response.data.toString());
 // 请求参数也可以通过对象传递，上面的代码等同于：
 response = await dio.get("/test", queryParameters: {"id": 12, "name": "wendu"});