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e44fc75a - Update sdxl reference pipeline to latest sdxl pipeline (#9938)

Update sdxl reference pipeline to latest sdxl pipeline (#9938) * Update sdxl reference community pipeline * Update README.md Add example images. * Style & quality * Use example images from huggingface documentation-images repository --------- Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>