Update README.md

Author: substill

README.md

@@ -18,7 +18,7 @@ Due to the small size of public released dataset, we proposed to collect data fr
 ## Pretrained models
 
 we aims to train median-large pre-trained models (model size from 110M to 2.7B) based on GPT-Neo:
-- PyCodeGPT-110M: derived from GPT-Neo 125M with a vocabulary size of 32K. [Download PyCodeGPT 110M](https://github.com/microsoft/PyCodeGPT/releases/tag/PyCodeGPT-110M). We also continue-pretrained PyCodeGPT for Libary oriented scenarios, called CERT, the models can be downloaded [here](https://github.com/microsoft/PyCodeGPT/releases).
+- PyCodeGPT-110M: derived from GPT-Neo 125M with a vocabulary size of 32K. [Download PyCodeGPT 110M](https://github.com/microsoft/PyCodeGPT/releases/tag/PyCodeGPT-110M). We also continue-pretrained PyCodeGPT for Libary oriented scenarios, called [CERT](https://github.com/microsoft/PyCodeGPT/tree/main/cert), the models can be downloaded [here](https://github.com/microsoft/PyCodeGPT/releases). 
 - PyCodeGPT-1.3B: coming soon.
 
 ## Evaluation