Update README.md

README.md

@@ -4,3 +4,11 @@ license: apache-2.0
 multilinguality: monolingual
 pretty_name: SciTail
 ---
+
+The SciTail dataset is an entailment dataset created from multiple-choice science exams and                                 
+web sentences. Each question and the correct answer choice are converted into an assertive                                  
+statement to form the hypothesis. We use information retrieval to obtain relevant text from                                 
+a large text corpus of web sentences, and use these sentences as a premise P. We crowdsource                                
+the annotation of such premise-hypothesis pair as supports (entails) or not (neutral), in order                             
+to create the SciTail dataset. The dataset contains 27,026 examples with 10,101 examples with                               
+entails label and 16,925 examples with neutral label.