show total download count

Author: dongyuwei

README.md

@@ -3,6 +3,7 @@
 ![Platform:linux](https://img.shields.io/badge/platform-linux-blue)
 ![github actions](https://github.com/dongyuwei/hallelujahIM/actions/workflows/github-actions-ci.yml/badge.svg)
 [![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](http://www.gnu.org/licenses/gpl-3.0)
+[![GitHub downloads](https://img.shields.io/github/downloads/dongyuwei/hallelujahIM/total?label=Downloads&labelColor=27303D&color=0D1117&logo=github&logoColor=FFFFFF&style=flat)](https://github.com/dongyuwei/hallelujahIM/releases)
 
 **中文版** | [English Version](README-En.md)