1 files changed, 17 insertions, 2 deletions
diff --git a/README b/README
index dbcf383..a6e37ce 100644
--- a/README
+++ b/README
@@ -86,12 +86,27 @@ Classes
 This module contains only the apt class, which sets up all described
 functionality.
 
+Defines
+=======
+
+apt::preferences_snippet
+------------------------
+
+A way to add pinning information to /etc/apt/preferences
+
+Example:
+
+  apt::preferences_snippet{
+    'irssi-plugin-otr':
+      release => 'lenny-backports',
+      priority => 999;
+  }
 
 Resources
 =========
 
-File[apt_config]
-----------------
+Concatenated_file[apt_config]
+-----------------------------
 Use this resource to depend on or add to a completed apt configuration
 
 Exec[apt_updated]