Update datacard

README.md

@@ -7,8 +7,8 @@ dataset_info:
     - name: A
       dtype: string
       description: "The answer to the mathematical question, also in LaTeX encoded format."
-    - name: metadata
-      dtype: dictionary
+    - name: meta
+      dtype: datasets.Features
       description: "A collection of metadata for each question-answer pair."
       fields:
         - name: language