Update tokenizer_config.json

tokenizer_config.json

@@ -1 +1,15 @@
-{"model_max_length": 512}
+{
+  "tokenizer_type": "WordPiece",
+  "max_len": 512,
+  "padding": "max_length",
+  "truncation": true,
+  "add_special_tokens": true,
+  "special_tokens": {
+    "eos_token": " ",
+    "bos_token": " ",
+    "pad_token": " ",
+    "unk_token": " ",
+    "cls_token": " ",
+    "sep_token": " "
+  }
+}