update

README.md

@@ -1,9 +1,14 @@
 ---
-license: apache-2.0
+license: cc-by-sa-4.0
 task_categories:
 - question-answering
 language:
 - nl
 size_categories:
 - n<1K
----
+---
+This is a collection of 101 (question,answer) pairs of cryptogram puzzles. 
+The dataset is derived from copyrighted material and is being used under the EU Copyright Directive's Text and Datamining exception for scientific research.
+The dataset is for non-commercial, scientific, and educational use only.
+Copyright to NRC / Scryptogram / J.J. Steenhuis. 
+Zie NRC Handelsblad van 24/8, 31/8, 7/9, 14/9 en 21/9 2024.