tier.yml in dev-lxc-0.6.1

- old
+ new

@@ -1,11 +1,17 @@
-## Mount source directories must exist in the LXC host
+## platform_image can be one of the following:
+## p-centos-5, p-centos-6, p-ubuntu-1204 or p-ubuntu-1404
 
-## Make sure package paths are correct
+## Make sure a mount's source directory exists in the LXC host
 
+## Make sure a package's path is correct
+
 ## All FQDNs and server names must end with the `.lxc` domain
 
 ## DHCP reserved (static) IPs must be selected from the IP range 10.0.3.150 - 254
+
+## topology can be one of the following:
+## standalone, tier or open-source (for the old open source 11 chef server)
 
 chef-server:
   platform_image: p-ubuntu-1404
   mounts:
     - /dev-shared dev-shared