app: add mentioned of baselines dataset

app.py

@@ -17,6 +17,7 @@ def main():
             ### Objective evaluation of speech generation systems
             Evaluations are done with [speech_gen_eval](https://github.com/balacoon/speech_gen_eval),
             on [speech_gen_eval_testsets](https://huggingface.co/datasets/balacoon/speech_gen_eval_testsets).
+            Results and audio are fetched from [speech_gen_baselines](https://huggingface.co/datasets/balacoon/speech_gen_baselines).
             """
         )