From fd5467dc75bc7bfb4762023dca0f736bb29e6730 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ilkka=20Sepp=C3=A4l=C3=A4?= <iluwatar@gmail.com>
Date: Fri, 22 Aug 2014 21:59:58 +0300
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 5be55639b..dd8688d37 100644
--- a/README.md
+++ b/README.md
@@ -58,3 +58,5 @@
 ##Memento
 **Intent:** Without violating encapsulation, capture and externalize an object's internal state so that the object can be restored to this state later.
 
+##Observer
+**Intent:** Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.