Update README.md

README.md

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 # Llama3.1 8b GGUF format models which can be runned on the MacOS or devices.
 
-# This repo focuses on the available and excellent tiny LLMs which can be easily runned for chatting PDFs on MacOS, balancing the LLM's effect and inference speed.
+## This repo focuses on the available and excellent tiny LLMs which can be easily runned for chatting PDFs on MacOS, balancing the LLM's effect and inference speed.
 
-## If you are a Mac user, you can download the beautiful ChatPDFLocal MacOS app from [here](www.chatpdflocal.com), load one or batch PDF files at will, and quickly experience the effect of the model through chat reading.
+If you are a Mac user, you can download the beautiful ChatPDFLocal MacOS app from [here](www.chatpdflocal.com), load one or batch PDF files at will, and quickly experience the effect of the model through chat reading.
 
-## PS. Click [here](https://awa-ai.lemonsqueezy.com/buy/89be07f8-060d-4a8f-a758-f25352773168) to subscribe and you can use ChatPDFLocal for free. The default model used by local LLM is ggml-model-Q3_K_M.gguf, you can also load any customerized open source model that suits your Mac configuration size by inputing huggingface repo, enjoy, thank you!
+PS. Click [here](https://awa-ai.lemonsqueezy.com/buy/89be07f8-060d-4a8f-a758-f25352773168) to subscribe and you can use ChatPDFLocal for free. The default model used by local LLM is ggml-model-Q3_K_M.gguf, you can also load any customerized open source model that suits your Mac configuration size by inputing huggingface repo, enjoy, thank you!