GitLab

* docs: first draft of BentoML integration

* Update the diffusers doc

* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

* add BentoML integration guide under Optimization section

* restyle codes

---------
Co-authored-by: Sherlock113 <sherlockxu07@gmail.com>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>