Update README.md

By using this data, you agree to comply with the original usage licenses of all sources. If the source data of this dataset is subject to a more restrictive license than CC BY-NC-SA 4.0, then this dataset conforms to that more stringent licensing. In all other scenarios, it is governed by the CC BY-NC-SA 4.0 license. Access to this dataset is granted automatically once you accept the license terms and complete all the required fields below.

README.md

@@ -1,5 +1,4 @@
 ---
-license: apache-2.0
 language:
 - es
 size_categories: