Add dataset card

README.md

@@ -9,6 +9,23 @@ task_categories:
 - text-classification
 task_ids:
 - Sentiment/Hate speech
+dataset_info:
+  features:
+  - name: text
+    dtype: string
+  - name: label
+    dtype: int64
+  splits:
+  - name: train
+    num_bytes: 312775
+    num_examples: 2048
+  download_size: 177125
+  dataset_size: 312775
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/train-*
 tags:
 - mteb
 - text