diff --git a/README.md b/README.md
index 3b19bd6bf..f8ce38c3c 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,6 @@ Intent: Define an interface for creating an object, but let subclasses decide wh
 
 ##Prototype
 Intent: Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.
+
+##Singleton
+Intent: Ensure a class only has one instance, and provide a global point of access to it.