add dataset_info in dataset metadata

README.md

@@ -19,6 +19,27 @@ task_ids:
 - sentiment-classification
 paperswithcode_id: nsmc
 pretty_name: Naver Sentiment Movie Corpus
+dataset_info:
+  features:
+  - name: id
+    dtype: string
+  - name: document
+    dtype: string
+  - name: label
+    dtype:
+      class_label:
+        names:
+          0: negative
+          1: positive
+  splits:
+  - name: test
+    num_bytes: 5491417
+    num_examples: 50000
+  - name: train
+    num_bytes: 16423803
+    num_examples: 150000
+  download_size: 19522142
+  dataset_size: 21915220
 ---
 
 # Dataset Card for Naver sentiment movie corpus
@@ -152,4 +173,4 @@ Each instance is a movie review written by Korean internet users on Naver, the m
 
 ### Contributions
 
-Thanks to [@jaketae](https://github.com/jaketae) for adding this dataset.
+Thanks to [@jaketae](https://github.com/jaketae) for adding this dataset.