Update README.md

README.md

@@ -16,10 +16,15 @@ configs:
   data_files:
   - split: train
     path: data/train-*
+license: apache-2.0
+task_categories:
+- question-answering
+- feature-extraction
+language:
+- en
 ---
 
 This is a mirror of [Google's Natural Questions (NQ)](https://github.com/google-research-datasets/natural-questions).
 The dataset is converted into paris of `(query, answer_passage)`.
 
-> Natural Questions (NQ) contains real user questions issued to Google search, and answers found from Wikipedia by annotators. NQ is designed for the training and evaluation of automatic question answering systems.
- 
+> Natural Questions (NQ) contains real user questions issued to Google search, and answers found from Wikipedia by annotators. NQ is designed for the training and evaluation of automatic question answering systems.