Update README.md

README.md

@@ -31,7 +31,7 @@ data
 - **dataset_with_ML_pred.tsv.gz** is the test sample supplemented by the predictions of the proposed ML-methods. In the [github repositiry](https://github.com/pfilonenko/ML_for_TwoSampleTesting), this file must be located in the _ML_for_TwoSampleTesting/proposed_ml_for_two_sample_testing/data/3_dataset_with_ML_pred/_
 
 # Dataset & Samples
-In these files there are following fields:
+In these files, there are following fields:
 
 1) PARAMETERS OF SAMPLE SIMULATION
 - **sample** is a type of the sample (train, val, test). This field is used to split dataset into train-validate-test samples for ML-model training;