Fix some documentation in ./src/diffusers/models/embeddings.py for demo

[DTG2005]

What does this PR do?

Fixes #9567

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Who can review?

This PR tries to attempt a solution at one of the submodules listed in #9567 so I think @a-r-r-o-w is the best to review it. Alongside the same, @charchit7 @yijun-lee and @SubhasmitaSw were also working on the same, so just a ping for the update on the same.

[a-r-r-o-w]

Thanks for the PR! Just some minor improvement suggestions. Will be good to merge after that

[DTG2005]

Reviewed! I'll remember the convention and follow the same when submitting future PRs!

[a-r-r-o-w]

One last thing, could you run make style to fix the quality tests?

[HuggingFaceDocBuilderDev]

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[a-r-r-o-w]

Gentle ping to run make style and push the changes @DTG2005

[DTG2005]

Sorry for the late response, there was some college work piled up.

So while running the same after eliminating certain errors, and then some, this output is printed

ruff check examples scripts src tests utils benchmarks setup.py --fix
All checks passed!
ruff format examples scripts src tests utils benchmarks setup.py
15 files reformatted, 1081 files left unchanged
doc-builder style src/diffusers docs/source --max_len 119
make: doc-builder: No such file or directory
make: *** [Makefile:59: style] Error 127

Is this correct or should I fix some more things before I push?

[a-r-r-o-w]

I believe that should be all, thanks!

[github-actions]

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[yiyixuxu]

thank you!