feat: add OpenAI-API-Service for readme

readme.md

@@ -491,6 +491,9 @@ All of these awesome projects are built using the `chatgpt` package. 🤯
 - [AItinerary – ChatGPT itinerary Generator](https://aitinerary.ai)
 - [wechaty-chatgpt - A chatbot based on Wechaty & ChatGPT](https://github.com/zhengxs2018/wechaty-chatgpt)
 - [Julius GPT](https://github.com/christophebe/julius-gpt) : Generate and publish your content from the command line with the help of AI (GPT).
+- [OpenAI-API-Service](https://github.com/Jarvan-via/api-service): Provide OpenAI related APIs for businesses, as well as other AI related APIs
+
+
 
 If you create a cool integration, feel free to open a PR and add it to the list.