Update README.md

README.md

@@ -42,4 +42,7 @@ pip install -r requirements.txt
 To start traning:
 ```python
   accelerate launch runner/controllable_train.py
-```
+```
+
+## Acknowledgement
+Our code referred to the [AudioLDM](https://github.com/haoheliu/AudioLDM) and [Tango](https://github.com/declare-lab/tango). We appreciate their open-sourcing of their code.