Align label mapping with imdb dataset (#1)

- Align label mapping with imdb dataset (07cbb28ba557781e4feb4099080013198e984b01)


Co-authored-by: Lewis Tunstall <lewtun@users.noreply.huggingface.co>

config.json

@@ -21,5 +21,13 @@
   "tie_weights_": true,
   "torch_dtype": "float32",
   "transformers_version": "4.17.0",
-  "vocab_size": 30522
-}
+  "vocab_size": 30522,
+  "label2id": {
+    "neg": 0,
+    "pos": 1
+  },
+  "id2label": {
+    "0": "neg",
+    "1": "pos"
+  }
+}