Update config.json

add a field "classifier_bias"

config.json

@@ -111,5 +111,6 @@
   "transformers_version": "4.6.0.dev0",
   "type_vocab_size": 1,
   "use_entity_aware_attention": true,
-  "vocab_size": 50267
+  "vocab_size": 50267,
+  "classifier_bias": false
 }