restored tokenizer_config.json to git

tokenizer_config.json

@@ -1,3 +1 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b483b62a51fa652c7880525ad071630a953ec2ace80c1798f70e69d3f1289650
-size 199
+{"unk_token": "<unk>", "eos_token": "</s>", "bos_token": "<s>", "pad_token": "<pad>", "name_or_path": "bigscience/tokenizer", "special_tokens_map_file": null, "tokenizer_class": "BloomTokenizerFast"}