Categorize and tag all patterns #213

twin/index.md

@@ -4,14 +4,14 @@ title: Twin
 folder: twin
 permalink: /patterns/twin/
 categories: Creational
-tags: Java
+tags:
+ - Java
+ - Difficulty-Intermediate
 ---
 
 **Intent:**  Twin pattern is a design pattern which provides a standard solution to simulate multiple
 inheritance in java
 
-
-
 ![alt text](./etc/twin.png "Twin")
 
 **Applicability:** Use the Twin idiom when
@@ -21,4 +21,4 @@ inheritance in java
 
 **Credits:**
 
-* [Twin – A Design Pattern for Modeling Multiple Inheritance](http://www.ssw.uni-linz.ac.at/Research/Papers/Moe99/Paper.pdf)
+* [Twin – A Design Pattern for Modeling Multiple Inheritance](http://www.ssw.uni-linz.ac.at/Research/Papers/Moe99/Paper.pdf)