Update README.md

Merge pull request #4 from levi/patch-4

Remove double delete of pipeline and cuda cache

Add missing revision parameter

Fix incorrect reference to instance_prompt variable

Fix typos on persistent_workers

Merge pull request #3 from levi/patch-3

Add missing option to discretize class image masks

Merge pull request #2 from levi/patch-2

Fix discretize mask argument naming

Add pretrained_txt2img_model_name_or_path argument

Merge pull request #1 from levi/patch-1

Remove duplicate local rank argument

Fix help text

Add inpainting and fix depth example cli script