Clean up and document
diff --git a/sdnip-setup-lxc.sh b/sdnip-setup-lxc.sh
index 729c1a9..9de2042 100644
--- a/sdnip-setup-lxc.sh
+++ b/sdnip-setup-lxc.sh
@@ -1,4 +1,9 @@
 #!/bin/bash
+# sdnip-setup-lxc.sh
+# 
+# Runs as sdnip user.
+#
+# Sets up the SDN-IP tutorial.
 
 export USER=sdnip