[Docs] Fix typos and update files at API's Pipelines page 2

[tolgacangoz]

What does this PR do?

• https://huggingface.co/docs/diffusers/main/en/api/pipelines/stable_diffusion/overview:
  StableDiffusionDepth2Img, StableDiffusionPipelineSafe, StableDiffusionLatentUpscale, and StableDiffusionLDM3D spaces are not working.

• https://huggingface.co/docs/diffusers/api/pipelines/self_attention_guidance:

• https://huggingface.co/docs/diffusers/api/pipelines/pix2pix_zero:
  Demos are not working.

• https://huggingface.co/docs/diffusers/main/en/api/pipelines/text_to_video_zero:
  Replaced imageio.mimsave("video.mp4", result, fps=4) with export_to_video because mimsave throws an error about fps arg.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline?
• Did you read our philosophy doc (important for complex PRs)?
• Was this discussed/approved via a GitHub issue or the forum? Please add a link to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the
  documentation guidelines, and
  here are tips on formatting docstrings.
• Did you write any new necessary tests?

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@stevhliu @yiyixuxu @DN6

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[stevhliu]

Thanks for the updates! 🎉

For the Spaces that aren't working, can you open a Discussion on the repository and ping the author? For example, for Self Attention Guidance, you can open a discussion here.

[tolgacangoz]

Thanks for the updates! 🎉

For the Spaces that aren't working, can you open a Discussion on the repository and ping the author? For example, for Self Attention Guidance, you can open a discussion here.

Done.

[kashif]

LGTM! thanks

[stevhliu]

Thanks again! 👍