Update README.md

README.md

@@ -13,4 +13,7 @@ This dataset contains 1 million records of metadata and vectorized features for
 Visit https://github.com/elastic/ember for more information on the dataset.<br>
 
 ## Usage <br>
-dataset = load_dataset("cw1521/ember2018-malware", field="data")
+dataset = load_dataset("cw1521/ember2018-malware", field="data")
+<br><br>
+x - vectorized features <br>
+y - label (0 for benign and 1 for malware)