Update FAQ (#4661)

### What problem does this PR solve?

Update FAQ

### Type of change

- [x] Documentation Update

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Signed-off-by: Jin Hai <haijin.chn@gmail.com>
Co-authored-by: writinwaters <93570324+writinwaters@users.noreply.github.com>

docs/references/faq.md

 
 ### Which architectures or devices does RAGFlow support?
 
-We officially support x86 CPU and nvidia GPU. While we also test RAGFlow on ARM64 platforms, we do not plan to maintain RAGFlow Docker images for ARM.
+We officially support x86 CPU and nvidia GPU. While we also test RAGFlow on ARM64 platforms, we do not maintain RAGFlow Docker images for ARM. If you are on an ARM platform, follow [this guide](https://ragflow.io/docs/dev/build_docker_image) to build a RAGFlow Docker image.
 
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