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/caching/README.md

@@ -0,0 +1,27 @@
+---
+layout: pattern
+title: Caching
+folder: caching
+permalink: /patterns/caching/
+categories: Behavioral
+tags:
+  - Performance
+  - Cloud distributed
+---
+
+## 目的
+为了避免昂贵的资源重新获取，方法是在资源使用后不立即释放资源。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](../../caching/etc/caching.png "Caching")
+
+## 适用性
+在以下情况下使用缓存模式
+
+* 重复获取，初始化和释放同一资源会导致不必要的性能开销。
+
+## 鸣谢
+
+* [Write-through, write-around, write-back: Cache explained](http://www.computerweekly.com/feature/Write-through-write-around-write-back-Cache-explained)
+* [Read-Through, Write-Through, Write-Behind, and Refresh-Ahead Caching](https://docs.oracle.com/cd/E15357_01/coh.360/e15723/cache_rtwtwbra.htm#COHDG5177)
+* [Cache-Aside pattern](https://docs.microsoft.com/en-us/azure/architecture/patterns/cache-aside)