link back to the original repo

Author: xoxys

README.md

@@ -10,7 +10,7 @@ Drone plugin to build multiarch Docker images with buildx
 [![Source: GitHub](https://img.shields.io/badge/source-github-blue.svg?logo=github&logoColor=white)](https://github.com/thegeeklab/drone-docker-buildx)
 [![License: MIT](https://img.shields.io/github/license/thegeeklab/drone-docker-buildx)](https://github.com/thegeeklab/drone-docker-buildx/blob/main/LICENSE)
 
-Drone plugin to build multiarch Docker images with buildx.
+Drone plugin to build multiarch Docker images with buildx. This plugin is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker).
 
 ## Docker Tags