Correct `sample_size` of Stable Diffusion 1's unet to have correct width and height default

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Update README.md

add gradio demo (#7)

uploading diffusers (#3)

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Update README.md

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Delete images/test.txt

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Create images/test.txt

Delete images/test.txt

Create images/test.txt

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Upload redshift-diffusion-v1.ckpt

initial commit