Update README.md

Author: JStone2934

README.md

@@ -72,6 +72,7 @@
 - **GitHub Release**: [点击下载](https://github.com/JStone2934/LiveGalGame/tags)
 - **夸克网盘**: https://pan.quark.cn/s/1000136902b5
 - **百度网盘**: https://pan.baidu.com/s/1Bpt2DZNvjzT6BpKr8RyG-A?pwd=94g6
+[![Get it on F-Droid](https://fdroid.gitlab.io/artwork/badge/get-it-on.png)](https://f-droid.org/packages/com.jstone.livegalgame/)
 
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