update config to use rcord

Change-Id: Ib944257d049c297e7dcbac61deb5f1867c47a8d2
diff --git a/config/sample.yml b/config/sample.yml
index 82ab6b4..bf3d680 100644
--- a/config/sample.yml
+++ b/config/sample.yml
@@ -8,6 +8,12 @@
   ansible_ssh_port: 22
 
 common:
+  # set to the profile of cord you want to install
+  cord_profile: 'rcord'
+
+  # directories on the head node that the cord dir is copied to, and profile is created in
+  cord_dir: '/opt/cord'
+  cord_profile_dir: '/opt/cord_profile'
 
   # Network address information for the head node:
   #