Also updating release instructions to match changes in demo infrastructure.

Author: jglick

README.md

@@ -15,14 +15,14 @@ The plugin has a Docker-based demo. See the [demo README](demo/README.md) page f
 Releasing
 ---
 
-Prior to release, run:
+Prior to release, edit `demo/plugins.txt` to use the snapshot version and run:
 
     mvn -DskipTests clean install
-    make -C demo clean run-snapshot
+    make -C demo run
 
 and verify that the demo works.
 
-After the release makes it to the update center, update the `docker-workflow` version in `demo/plugins.txt` and run
+After the Maven release completes, update the `docker-workflow` version in `demo/plugins.txt` to the release version and run
 
     make -C demo run