add v1 model

Update README.md

Rename pytorch_model.balance.bin to pytorch_model.bin

Rename viscpm_chat_zhplus_checkpoint.pt to pytorch_model.zhplus.bin

Rename viscpm_chat_balance_checkpoint.pt to pytorch_model.balance.bin

feat: 🎸 add chat model code

Create README.md

Rename viscpm_chat_chplus_checkpoint.pt to viscpm_chat_zhplus_checkpoint.pt

Upload viscpm_chat_balance_checkpoint.pt

Upload viscpm_chat_chplus_checkpoint.pt

initial commit