update with bark-small reference

README.md

@@ -36,7 +36,9 @@ This model is meant for research purposes only.
 The model output is not censored and the authors do not endorse the opinions in the generated content. 
 Use at your own risk.
 
-The following is additional information about the models released here. 
+Two checkpoints are released:
+- [small](https://huggingface.co/suno/bark-small)
+- [**large** (this checkpoint)](https://huggingface.co/suno/bark)
 
 
 ## Example
@@ -149,6 +151,9 @@ write_wav("/path/to/audio.wav", SAMPLE_RATE, audio_array)
 
 ## Model Details
 
+
+The following is additional information about the models released here. 
+
 Bark is a series of three transformer models that turn text into audio.
 
 ### Text to semantic tokens