update comment

Author: RohitKushvaha01

src/plugins/system/system.d.ts

@@ -189,9 +189,9 @@ interface System {
   openInBrowser(src: string): void;
   /**
    * Launches and app
-   * @param app
-   * @param action
-   * @param value
+   * @param app the package name of the app
+   * @param className the full class name of the activity
+   * @param data Data to pass to the app
    * @param onSuccess
    * @param onFail
    */