修改 README.md

-# DJI Payload SDK (PSDK)
+# Project Path
 
-![](https://img.shields.io/badge/version-V3.5.0-yellow.svg)
-![](https://img.shields.io/badge/platform-linux_|_rtos-green.svg)
-![](https://img.shields.io/badge/license-MIT-blue.svg)
+D:\PSDK\psdk3.9.2\F4空投系列
 
 ## What is the DJI Payload SDK?