Align label mapping with cola config of glue dataset (#1)

- Align label mapping with cola config of glue dataset (aba055da968d35d4f2f7273e49797727cbc39283)


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

config.json

@@ -26,5 +26,13 @@
   "transformers_version": "4.18.0",
   "type_vocab_size": 1,
   "use_cache": true,
-  "vocab_size": 50265
-}
+  "vocab_size": 50265,
+  "label2id": {
+    "unacceptable": 0,
+    "acceptable": 1
+  },
+  "id2label": {
+    "0": "unacceptable",
+    "1": "acceptable"
+  }
+}