Merge pull request #4654 from tyiu/master

Fix EmbeddedAppIOS documentation

docs/EmbeddedAppIOS.md

@@ -136,6 +136,7 @@ NSURL *jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.b
 //   curl http://localhost:8081/index.ios.bundle -o main.jsbundle
 RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
                                                     moduleName: @"SimpleApp"
+                                             initialProperties:nil
                                                  launchOptions:nil];
 ```