add sponsor recall.ai

Author: harlanc

README.md

@@ -23,10 +23,26 @@
 [![](https://img.shields.io/discord/894502149764034560?logo=discord)](https://discord.gg/gS5wBRtpcB)
 ![wechat](https://img.shields.io/:微信-harlancc-blue.svg)
 
+[English Doc](https://harlanc.github.io/) [中文文档](https://harlanc.github.io/zh-cn/) 
+
+## Sponsors
+
+We would like to thank the following sponsors for their support of this project.
+
+### Recall.ai - API for meeting recordings
+<p align="center" width="100%">
+    <a href="https://www.recall.ai/">
+        <img width="20%" src="https://raw.githubusercontent.com/harlanc/xiu/a4b70646597e66c2df955537411eb256b69eb9d1/doc/recall-logo.svg">
+    </a>
+</p>
+
+If you’re looking for a meeting recording API, consider checking out [Recall.ai](https://www.recall.ai/product/meeting-recording-api), an API that records Zoom, Google Meet, Microsoft Teams, in-person meetings, and more.
+
+
 
 
-[English Doc](https://harlanc.github.io/) [中文文档](https://harlanc.github.io/zh-cn/) 
 
+## Overview
 
 
 Xiu is a simple,high performance and secure live media server written in pure Rust, it now supports popular live protocols like RTMP[cluster]/RTSP/WebRTC[Whip/Whep]/HLS/HTTP-FLV.