DS-VChat-blog-clean (#4445)
Co-authored-by: Heyang Qin <heyangqin@microsoft.com>
Co-authored-by: Zhewei Yao <zheweiy@berkeley.edu>
Co-authored-by: Minjia Zhang <33713995+minjiaz@users.noreply.github.com>
Co-authored-by: Xiaoxia (Shirley) Wu <94406484+xiaoxiawu-microsoft@users.noreply.github.com>
