Upload tokenizer

tokenizer_config.json

@@ -254,7 +254,7 @@
   "extra_special_tokens": {},
   "model_max_length": 8200,
   "pad_token": "<|endoftext|>",
-  "padding_side": "right",
+  "padding_side": "left",
   "tokenizer_class": "GPT2Tokenizer",
   "unk_token": "<|endoftext|>"
 }