add low-code prompt app dev framework PromptAppGPT

pages/applications/pf.en.mdx

@@ -103,5 +103,5 @@ Now, there already have many projects that are working on programming GPT, such
 
 But those projects are designed either for product customer or for users who can code with Python or other programming languages. 
 For the average user, use this easy template for daily work and iterate a couple of times. Use a note application to document the function, and it can even be updated to a library. 
-Alternatively, some open source ChatGPT tools, such as [ChatGPT-Next-Web](https://github.com/Yidadaa/ChatGPT-Next-Web), [chatbox](https://github.com/Bin-Huang/chatbox), and [ChatGPT-Desktop](https://github.com/lencx/ChatGPT), can be used. Currently, ChatGPT-Next-Web allows adding a few shots before initializing the new chat. 
+Alternatively, some open source ChatGPT tools, such as [ChatGPT-Next-Web](https://github.com/Yidadaa/ChatGPT-Next-Web), [chatbox](https://github.com/Bin-Huang/chatbox), [PromptAppGPT](https://github.com/mleoking/PromptAppGPT), and [ChatGPT-Desktop](https://github.com/lencx/ChatGPT), can be used. Currently, ChatGPT-Next-Web allows adding a few shots before initializing the new chat. And PromptAppGPT supports low-code development of web applications based on prompt templates and enables anyone to develop AutoGPT-like applications with a few lines of prompts.
 We can use this feature to add our function, which can then be used.