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

[DTG2005]

What does this PR do?

Fixes #9567

Before submitting

• [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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• [ ] Did you write any new necessary tests?

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.

[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!

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[yiyixuxu]

thank you!