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Update README.md

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add GGUF quantized files for Llama-3.2-3B query expansion model

add GGUF quantized files for Llama-3.2-3B query expansion model

add GGUF quantized files for Llama-3.2-3B query expansion model

add GGUF quantized files for Llama-3.2-3B query expansion model

add GGUF quantized files for Llama-3.2-3B query expansion model

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