add dataset_info in dataset metadata

README.md

@@ -20,6 +20,27 @@ task_categories:
 task_ids:
 - language-modeling
 - masked-language-modeling
+dataset_info:
+- config_name: enwik8
+  features:
+  - name: text
+    dtype: string
+  splits:
+  - name: train
+    num_bytes: 104299244
+    num_examples: 1128024
+  download_size: 36445475
+  dataset_size: 102383126
+- config_name: enwik8-raw
+  features:
+  - name: text
+    dtype: string
+  splits:
+  - name: train
+    num_bytes: 100000008
+    num_examples: 1
+  download_size: 36445475
+  dataset_size: 100000008
 ---
 
 # Dataset Card for enwik8
@@ -160,4 +181,4 @@ Dataset is not part of a publication, and can therefore not be cited.
 
 ### Contributions
 
-Thanks to [@HallerPatrick](https://github.com/HallerPatrick) for adding this dataset and [@mtanghu](https://github.com/mtanghu) for updating it.
+Thanks to [@HallerPatrick](https://github.com/HallerPatrick) for adding this dataset and [@mtanghu](https://github.com/mtanghu) for updating it.