Update README.md

README.md

@@ -14,8 +14,11 @@ tags:
 - laptop
 - devices
 ---
-This is Phi-3.5-mini-instruct GGUF format model, which can be easily runned on PCs, mobile phones or devices with llama.cpp.  
+# This is Phi-3.5-mini-instruct GGUF format model, which can be easily runned on PCs, mobile phones or devices with llama.cpp. 
 
-If you are a Mac user, you can download the beautiful ChatPDFLocal MacOS app from [here](https://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, the following free wonderful AI tools can help you to read and understand PDFs effectively:
+## If you are using Zotero for managing and reading your personal PDFs, [zotero-chatpdf](https://github.com/ljeagle/zotero-chatpdf) is a free plugin which can assist you to chat PDFs effectively by your local llama3.1.
+## you can download the beautiful ChatPDFLocal MacOS app from [here](https://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 to subscribe and you can use ChatPDFLocal for free.
 
 Subscription or inviting friends in ChatPDFLocal MacOS app can earn credits to use freely.