Update README.md

README.md

@@ -102,5 +102,5 @@ In particular, our approach yields significant gains in the number of splits and
 
 ## License
 
-WikiSplit is distributed under the CC-BY-SA 3.0 license.  
+[WikiSplit](https://github.com/google-research-datasets/wiki-split) is distributed under the CC-BY-SA 4.0 license.  
 This dataset follows suit and is distributed under the CC-BY-SA 4.0 license.