Update instructions on running integration_test (#3871)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2d11c6a..ed3dd79 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -91,7 +91,7 @@
 
 ```console
 cd example
-flutter drive test_driver/<name_of_plugin_test>.dart
+flutter drive --driver test_driver/integration_test.dart --target integration_test/<name_of_plugin_test>.dart
 ```
 
 To run integration tests as instrumentation tests on a local Android device: