docs: faq.mdx load model from local directory (#1536)

* Update faq.mdx

Local model.json path description added

* Update faq.mdx

added information about MODEL_SPEC.md

* Update website/docs/faq.mdx

* Update faq.mdx

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Co-authored-by: Meng Zhang <meng@tabbyml.com>

website/docs/faq.mdx

@@ -42,4 +42,10 @@ Users are free to fork the repository to create their own registry. If a user's
 
 For details on the registry format, please refer to [models.json](https://github.com/TabbyML/registry-tabby/blob/main/models.json)
 
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+<Collapse title="Can I use local model with Tabby?">
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+Tabby also supports loading models from a local directory that follow our specifications as outlined in [MODEL_SPEC.md](https://github.com/TabbyML/tabby/blob/main/MODEL_SPEC.md).
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