Fix task arrays (#1)

- Fix task arrays (9e05484d0d175f8e1606ea30860fe19b34c3528b)

README.md

@@ -5,8 +5,12 @@ language: es
 multilinguality: monolingual
 size_categories: 10K<n<100K
 source_datasets: squad_es
-task_categories: question-generation
-task_ids: question-generation
+task_categories:
+- text-generation
+task_ids:
+- language-modeling
+tags:
+- question-generation
 ---
 
 # Dataset Card for "lmqg/qg_esquad"