diff --git a/README.md b/README.md
index d9af16b..ec9c55e 100644
--- a/README.md
+++ b/README.md
@@ -153,6 +153,10 @@ More information about this tool can be found under the stack-builder directory.
 
 first, log into your build server, and run the following script to bootstrap it as a puppet master:
 
+If you want to use the havana version of the packages, set the following ENV var:
+
+    export openstack_version=havana
+
     bash <(curl -fsS https://raw.github.com/CiscoSystems/openstack-installer/master/install-scripts/master.sh)
 
 ### set up your data
@@ -176,6 +180,12 @@ Choices are in:
 
     /etc/puppet/data/scenarios
 
+Defaults for end user data should be located in one of the following files:
+
+    /etc/puppet/data/hiera_data/user.yaml
+    /etc/puppet/data/hiera_data/user.common.yaml
+    /etc/puppet/data/hiera_data/user.<scenario>.yaml
+
 ### install each of your components
 
 first setup each node (unless you're doing all\_in\_one scenario, in which case you'll already have done this from the previous step):