📝 Fix broken link to models documentation (#4026)

* 📝 Fix broken link to models documentation

Corrected the link to the models documentation in the README. Previously, the link was pointing to an incorrect URL. Now, the link directs users to the correct documentation page for more details on the models.

Thanks! 🙌



* Update src/diffusers/models/README.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

src/diffusers/models/README.md

 # Models
 
-For more detail on the models, please refer to the [docs](https://huggingface.co/docs/diffusers/api/models).
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+For more detail on the models, please refer to the [docs](https://huggingface.co/docs/diffusers/api/models/overview).
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