Update README.md

README.md

@@ -153,7 +153,9 @@ Data fields for function level:
 Due to the limitation of the huggingface data structure, we do not contain **parameters** and **docstring_params** fields in this repo. The detail of data fields can be found in [The Vault data format](https://github.com/FSoft-AI4Code/TheVault/blob/main/data/README.md) and the full dataset version can be downloaded [here](https://github.com/FSoft-AI4Code/TheVault/).
 ### Data Splits
 
-In this repo, The Vault is divided into 5 subsets, where three training versions are split based on dataset size, and the remains are validation set and test set. The statistic for each language is illustrated in the following section.
+In this repo, The Vault is divided into 5 subsets, where three training versions are split based on dataset size, and the remains are validation set and test set (20,000 samples in each). The statistic for each language is illustrated in the following section.
+
+There are 3 versions of training set that are small (5%), medium (20%) and large (100%).
 
 ## Dataset Statistics