Update datacard

README.md

@@ -8,7 +8,7 @@ dataset_info:
       dtype: string
       description: "The answer to the mathematical question, also in LaTeX encoded format."
     - name: meta
-      dtype: string
+      dtype: struct<language: string, url: string, timestamp: timestamp[s], source: string, question_score: string, answer_count: int64, answer_id: int64>
       description: '''A collection of metadata for each question-answer pair.
       fields:
         - name: language