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* add note on caching in fast diffusion

* formatting

* Update docs/source/en/tutorials/fast_diffusion.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

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

* Trim all the trailing white space in the whole repo

* Remove unnecessary empty places

* make style && make quality

* Trim trailing white space

* trim

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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

change to 2024

* edits

* fix

* feedback

fix local links

add note on fp16

add details concerning diffusers-specific bits.

* add doc for diffusion fast

* add entry to _toctree

* Apply suggestions from code review

* fix titlew

* fix: title entry

* add note about fuse_qkv_projections