Update README.md
@ -41,7 +41,7 @@ may help you: [maixpy-doc](https://maixpy.sipeed.com/zh/get_started/env_install_
- [x] S mode extern interrupt
- [x] Receive uarths message
- [x] SD card driver
- [ ] Process management
- [x] Process management
- [ ] File system
- [ ] User program