Update README.md

Author: Nativeatom

README.md

@@ -128,7 +128,7 @@ Category of areas is based on tracks in ACL 2018
 - Dataset
     - [CNN/DailyMail](https://cs.nyu.edu/~kcho/DMQA/)
     - [SQuAD](https://rajpurkar.github.io/SQuAD-explorer/) 
-            - Benchmark: 86.967(F1)[BERT + Synthetic Self-Training (ensemble)](https://github.com/google-research/bert) *Jan 10, 2019*
+        - Benchmark: 86.967(F1)  [BERT + Synthetic Self-Training (ensemble)](https://github.com/google-research/bert)   *Jan 10, 2019*
 
 ### Resources and Evaluation