Update README.md

Author: cujomalainey

README.md

@@ -3,7 +3,7 @@ An Implementation of the Ant+ Network on top of [ant-arduino](https://github.com
 
 ## Status
 
-[![Build and Tests](https://github.com/cujomalainey/antplus-arduino/workflows/Build%20and%20Tests/badge.svg?branch=master&event=push)](https://github.com/cujomalainey/antplus-arduino/actions)
+This repository is in maintenance mode! Garmin has signaled the end of the ANT/ANT+ ecosystem, therefore I will not be adding any new features, feel free to send PRs and I will review and integrate.
 
 ## Roadmap