Translation zh (#1646)

* add state and callback pattern

* add command and template-method pattern

* add iterator pattern

* add bridege and DI pattern

* fix issue #1600

* add converter,proxy,visitor pattern

* add caching,composite,delegation,dirty-flag,interpreter patterns

* add dao and producer-consumer

* add dto and provate class data pattern

* fix #1646 png path problems

* fix #1646 composite png path case problem

Co-authored-by: Mike <admin@xiaod.info>
Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>

zh/dirty-flag/README.md

@@ -0,0 +1,29 @@
+---
+layout: pattern
+title: Dirty Flag
+folder: dirty-flag
+permalink: /patterns/dirty-flag/
+categories: Behavioral
+tags:
+ - Game programming
+ - Performance
+---
+
+## 或称
+* 是否脏 模式
+
+## 目的
+避免昂贵资源的重新获取。资源保留其身份，保留在某些快速访问的存储中，并被重新使用以避免再次获取它们。
+
+## 类图
+![alt text](../../dirty-flag/etc/dirty-flag.png "Dirty Flag")
+
+## 适用性
+在以下情况下使用脏标志模式
+
+* 重复获取，初始化，释放相同资源所导致不必要的性能开销
+
+## 鸣谢
+
+* [Design Patterns: Dirty Flag](https://www.takeupcode.com/podcast/89-design-patterns-dirty-flag/)
+* [J2EE Design Patterns](https://www.amazon.com/gp/product/0596004273/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596004273&linkCode=as2&tag=javadesignpat-20&linkId=48d37c67fb3d845b802fa9b619ad8f31)