README.md in chef-sugar-2.3.2 vs README.md in chef-sugar-2.4.0

@@ -150,9 +150,21 @@
 
 ```ruby
 encrypted_data_bag_item_for_environment('accounts', 'github')
 ```
 
+### Docker
+Chef Sugar looks for hints to see if the node being converged is a Docker container. When [Ohai supports checking other nodes](https://github.com/opscode/ohai/pull/428), Chef Sugar will automatically pick up the information.
+
+- `docker?`
+
+#### Examples
+```ruby
+template '/runme' do
+  only_if { docker?(node) }
+end
+```
+
 ### Attributes
 Chef Sugar adds more Chef-like DSL to attribute definitions. Instead of using the Ruby hash syntax, you can define attributes using nested namespaces. This DSL may be more friendly to non-Ruby developers. It can safely be mixed-and-matched with the standard syntax.
 
 ```ruby
 # This is functionally the same as default['apache2']['config']['root'] = '/var/www'