Update README.md

Author: aandryashin

README.md

@@ -2,6 +2,8 @@
 [![Build Status](https://github.com/aerokube/images/workflows/build/badge.svg)](https://github.com/aerokube/images/actions?query=workflow%3Abuild)
 [![Release](https://img.shields.io/github/release/aerokube/images.svg)](https://github.com/aerokube/images/releases/latest)
 
+**UNMAINTAINED**. Consider https://aerokube.com/moon/latest as alternative.
+
 This repository contains [Docker](http://docker.com/) build files to be used for [Selenoid](http://github.com/aerokube/selenoid) and [Moon](http://github.com/aerokube/moon) projects. You can find prebuilt images [here](https://hub.docker.com/u/selenoid/).
 
 ## Download Statistics