update README.md

dslsyeoh · dslsyeoh · commit 0da5215b5468 · 2019-12-17T00:10:37.000+08:00
diff --git a/README.md b/README.md
@@ -9,4 +9,10 @@ List of exercise example of design pattern
 - Adapter
 - Decorator
 - Composite
-- Proxy
+- Proxy
+- State
+- Template
+
+References
+1. https://www.youtube.com/playlist?list=PLrhzvIcii6GNjpARdnO4ueTUAVR9eMBpc
+2. https://medium.com/@arjunsk/design-pattern-in-java-bafd91a5d24e
