update README to prepare for archiving repo

references #73

Author: SethTisue

README.md

@@ -1,19 +1,5 @@
-# scala-continuations [![Build Status](https://travis-ci.org/scala/scala-continuations.svg?branch=master)](https://travis-ci.org/scala/scala-continuations)
+scala-continuations is a compiler plugin and library for Scala providing support for CPS (continuation-passing style) transformations.
 
-scala-continuations is a library and a compiler plugin for Scala language that provides support for CPS transformations.
+It is no longer maintained. Past releases (for Scala 2.12 and earlier) remain available on Maven Central.
 
-You may also be interested in https://github.com/scala/scala-async, which covers what was once the most common use case for the continuations plugin.
-
-## Maintenance
-
-This library is community-maintained.
-
-There is not currently a lead maintainer. If you would like to volunteer, please open an issue and say so.
-
-(In the absence of a volunteer maintainer, the Scala team at Lightbend is doing the barest minimum maintenance.)
-
-## Scala versions supported
-
-The current development branch supports Scala 2.11 and 2.12 on JDK 8+.  (Older artifacts, supporting older Scala versions, remain available on Maven Central.)
-
-The [support for Scala 2.13](https://github.com/scala/scala-continuations/issues/37) is work in progress.
+You might also be interested in https://github.com/scala/scala-async, which covers what was once the most common use case for the continuations plugin.