cleanup and updated Cloudlab OpenStack profile playbooks
diff --git a/cord-single-playbook.yml b/cord-single-playbook.yml
index 9496503..2e1b738 100644
--- a/cord-single-playbook.yml
+++ b/cord-single-playbook.yml
@@ -1,5 +1,8 @@
 ---
-# CORD playbook, for installing a single-node CORD test-environment on cloudlab
+# Installs the single node cord-pod XOS configuration, using Juju to provision
+# the OpenStack installation inside of VM's on the head node.
+#
+# This is used by `scripts/single-node-pod.sh` for E2E testing.
 
 - name: Include vars
   hosts: all