update README

Author: Vinlic

README.md

@@ -9,7 +9,7 @@
 
 与ChatGPT接口完全兼容。
 
-还有以下七个free-api欢迎关注：
+还有以下八个free-api欢迎关注：
 
 Moonshot AI（Kimi.ai）接口转API [kimi-free-api](https://github.com/LLM-Red-Team/kimi-free-api)
 
@@ -23,6 +23,8 @@ Moonshot AI（Kimi.ai）接口转API [kimi-free-api](https://github.com/LLM-Red-
 
 MiniMax（海螺AI）接口转API [hailuo-free-api](https://github.com/LLM-Red-Team/hailuo-free-api)
 
+深度求索（DeepSeek）接口转API [deepseek-free-api](https://github.com/LLM-Red-Team/deepseek-free-api)
+
 聆心智能 (Emohaa) 接口转API [emohaa-free-api](https://github.com/LLM-Red-Team/emohaa-free-api)
 
 ## 目录