Update README.md

Update README.md

Update README.md

fix version

update requirements.txt

add stats of repo

Add detailed installation documentation

Add detailed installation documentation

fix timestamp undefine issue

update docs of deepspeed

add SFT(instruction-tuning) on LLaMA 2-7B

add SFT(instruction-tuning) on LLaMA 2-7B

add version check script and update docs

update chatglm qlora on private data

update demo