update chat template in model

add bos in chat template

add chatml template

Update special tokens

Update license in Readme.md

fix errir links

Update README.md

Update README.md

fix import error

support flash attn 2

Create README.md

fix: add eoa into eos_token_id in chat to accelerate chat interface

initial commit internlm2-chat-7b-sft model

update .gitattributes

initial commit