Update README.md

demos/style_fs2/README.md

 # Style FastSpeech2
-You can change the `pitch`、`duration` and `energy` of `FastSpeech2`.
+You can change the `pitch`、`duration` and `energy` of `FastSpeech2`, then get some interesting results.
 
 Run the following command line to get started:
 ```
 ./run.sh
 ```
 For more details, please see `style_syn.py`
+
+The audio samples are in [style-control-in-fastspeech2](https://paddlespeech.readthedocs.io/en/latest/tts/demo.html#style-control-in-fastspeech2)