README.md in chake-0.19 vs README.md in chake-0.20

@@ -294,9 +294,23 @@
 ```
 
 When you run `rake converge` on `desktop`, `laptop` will be skipped, and
 vice-versa.
 
+### Accessing node data from your own tasks
+
+It's often useful to be able to run arbitrary commands against the data you
+have about nodes. You can use the `Chake.nodes` for that. For example, if you
+want to geolocate each of yours hosts:
+
+```ruby
+task :geolocate do
+  Chake.nodes.each do |node|
+    puts "#{node.hostname}: %s" % `geoiplookup #{node.hostname}`.strip
+  end
+end
+```
+
 ## Environment variables
 
 * `$CHAKE_SSH_CONFIG`:
   Local SSH configuration file. Defaults to `.ssh_config`.
 * `$CHAKE_SSH_PREFIX`: