Fix marigold documentation (#8372)
* rename prs-eth/marigold-lcm-v1-0 into prs-eth/marigold-depth-lcm-v1-0
* update image paths in https://huggingface.co/datasets/huggingface/documentation-images to use main branch
* fix relative paths to other diffusers pages
* Update docs/source/en/using-diffusers/marigold_usage.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
---------
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
