Add Null Object Pattern

Change `render()` method name for Button interface in Factory pattern article

I can't access the website.

Bridge vs Adapter

Where are the Analysis Patterns, like Party and Metamodel?

bridge .v. abstract factory

Please add a Razor Pay payment gateway

Could somebody explain me how to use Bridge with Abstrac Factory?

Why Prototype isn't based on inherience?

为啥 缺少 「解释器模式」的介绍说明呢？