Upload tokenizer

tokenizer_config.json

@@ -306,7 +306,7 @@
   "clean_up_tokenization_spaces": true,
   "eos_token": "<|endoftext|>",
   "max_length": 2048,
-  "model_max_length": 2048,
+  "model_max_length": 4096,
   "pad_token": "<|endoftext|>",
   "stride": 0,
   "tokenizer_class": "GPT2Tokenizer",