Point to index.js in xcode build scripts

playground/ios/playground.xcodeproj/project.pbxproj

 			remoteGlobalIDString = 2D2A28881D9B049200D4039D;
 			remoteInfo = "RCTWebSocket-tvOS";
 		};
+		E506412420A3138100EC769F /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 7B8F2FCA1E840F3600110AEC /* React.xcodeproj */;
+			proxyType = 2;
+			remoteGlobalIDString = 9936F3131F5F2E4B0010BF04;
+			remoteInfo = privatedata;
+		};
 		E8CB6AA71FF10BC4007C82EF /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 7B8F2FCA1E840F3600110AEC /* React.xcodeproj */;
 				E8CB6AAA1FF10BC4007C82EF /* libthird-party.a */,
 				E8CB6AAC1FF10BC4007C82EF /* libdouble-conversion.a */,
 				E8CB6AAE1FF10BC4007C82EF /* libdouble-conversion.a */,
+				E506412520A3138100EC769F /* libprivatedata.a */,
 			);
 			name = Products;
 			sourceTree = "<group>";
 			remoteRef = 7B8F30471E8412E100110AEC /* PBXContainerItemProxy */;
 			sourceTree = BUILT_PRODUCTS_DIR;
 		};
+		E506412520A3138100EC769F /* libprivatedata.a */ = {
+			isa = PBXReferenceProxy;
+			fileType = archive.ar;
+			path = libprivatedata.a;
+			remoteRef = E506412420A3138100EC769F /* PBXContainerItemProxy */;
+			sourceTree = BUILT_PRODUCTS_DIR;
+		};
 		E8CB6AA81FF10BC4007C82EF /* libthird-party.a */ = {
 			isa = PBXReferenceProxy;
 			fileType = archive.ar;
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "export NODE_BINARY=node\n../../node_modules/react-native/scripts/react-native-xcode.sh ./playground/index.ios.js";
+			shellScript = "export NODE_BINARY=node\n../../node_modules/react-native/scripts/react-native-xcode.sh ./playground/index.js";
 		};
 /* End PBXShellScriptBuildPhase section */