Update README.md

This dataset is based on the SocialGrep/one-million-reddit-jokes dataset, and was augmented using KeyBert to be used as part of the Open Assistant project.

README.md

@@ -19,6 +19,9 @@ dataset_info:
     num_examples: 20000
   download_size: 6222319
   dataset_size: 11848430
+license: mit
+language:
+- en
 ---
 # Dataset Card for "oa_tell_a_joke_20000"