Add a way to buy me coffee

minecraft-server/README.md

@@ -3,6 +3,7 @@
 [![Docker Stars](https://img.shields.io/docker/stars/itzg/minecraft-server.svg?maxAge=2592000)](https://hub.docker.com/r/itzg/minecraft-server/)
 [![GitHub Issues](https://img.shields.io/github/issues-raw/itzg/dockerfiles.svg)](https://github.com/itzg/dockerfiles/issues)
 [![](https://img.shields.io/gitter/room/itzg/dockerfiles.svg?style=flat)](https://gitter.im/itzg/dockerfiles)
+[![](https://img.shields.io/badge/Donate-Buy%20me%20a%20coffee-orange.svg)](https://www.buymeacoffee.com/itzg)
 
 This docker image provides a Minecraft Server that will automatically download the latest stable
 version at startup. You can also run/upgrade to any specific version or the