Update README.md

Author: JC-ProgJava

README.md

@@ -19,3 +19,10 @@ Steps:
 
 ## License
 
+The dataset is licensed under the [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) license, which gives permission for:
+- Sharing: distributing & copying the dataset in any format.
+- Adaptation/modification: change, add on to, and use commercially.
+As long as:
+- Attribution: credit is given to the creator, providing a link to the license and page where the dataset was originally found.
+- Changes to the dataset are specified.
+- Your version of this dataset is distributed under the same license.