Add summary that MCAD v2 development has ended (#169)

Author: dgrove-oss

README.md

@@ -1,5 +1,14 @@
+# Active development on MCAD v2 has ended
+
+**In 2024, the MCAD developers joined the [Kueue community](https://github.com/kubernetes-sigs/kueue).
+We stopped working on MCAD as a standalone project and shifted to bringing the lessons learned
+from MCAD to Kueue.  We developed a new [Kueue-compatabile version of AppWrapper](https://github.com/project-codeflare/appwrapper)
+which makes MCAD's support for complex workloads and advanced fault tolerance available to users of Kueue.**
+
 # MCAD v2
 
+## Overview
+
 This repository contains a reimplementation of MCAD
 ([multi-cluster-app-dispatcher](https://github.com/project-codeflare/multi-cluster-app-dispatcher))
 using recent versions of [controller