message: Update development guide
diff: @@ -103,4 +103,4 @@ Cesium for Unreal depends on Cesium's high-precision geospatial C++ library - [C
  4. Compile Cesium Native using `cmake --build build-android --config Release --target install`.
  5. Point your Unreal Engine Project to the `CesiumForUnreal.uplugin` file to load the plugin into Unreal Engine.
  -6. To package the plugin, run the `RunUAT.bat` command with options `-TargetPlatform=Win64+Android -Platform=Win64`.
  +6. To package the plugin, run the `RunUAT.bat` command with options `-TargetPlatforms=Win64+Android`.
  