Update README.md

README.md

@@ -163,9 +163,9 @@ See [here](https://github.com/FSoft-AI4Code/TheVault/blob/main/data/README.md) f
 
 ### 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 (20,000 samples in each). 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 (approximate 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%).
+Before split, the dataset is de-duplicated with the test sets in CodeSearchNet, HumanEval, APPS, CoDesc. There are 3 versions of training set that are small (5%), medium (20%) and large (100%).
 
 ## Dataset Statistics