Update README.md

iluwatar · iluwatar · commit 2d0905a5e9b9 · 2014-08-23T08:50:03.000+03:00
diff --git a/README.md b/README.md
@@ -60,3 +60,6 @@
 
 ##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.
+
+##State
+**Intent:** Allow an object to alter its behavior when its internal state changes. The object will appear to change its class.
