fix outdated links, close #5485

docs/spec/feature.en-US.md

@@ -84,7 +84,7 @@ We create a object-oriented design method and abstract UI patterns. That help us
 
 ### Scientific design principles
 
-See more at [『Ant Design Principles』](/docs/spec/principle).
+See more at [『Ant Design Principles』](/docs/spec/proximity).
 
 ---
 

docs/spec/feature.zh-CN.md

@@ -84,7 +84,7 @@ title: 基本理念
 
 ### 通俗而科学的设计原则
 
-详见[『设计原则』](/docs/spec/principle)。
+详见[『设计原则』](/docs/spec/proximity)。
 
 ---
 

docs/spec/introduce.en-US.md

@@ -17,7 +17,7 @@ Ant Design which is specially created for internal desktop applications, is comm
 
 We supply a series of design principles, practical patterns and high quality design resources (Sketch and Axure), to help people create their product prototypes beautifully and efficiently.
 
-- [Principles](/docs/spec/principle)
+- [Principles](/docs/spec/proximity)
 - [Patterns](/docs/pattern/navigation)
 - [Resource Download](/docs/resource/download)
 

docs/spec/introduce.zh-CN.md

@@ -17,7 +17,7 @@ Ant Design 是一个致力于提升『用户』和『设计者』使用体验的
 
 我们提供完善的设计原则、最佳实践和设计资源文件（Sketch 和 Axure），来帮助业务快速设计出高质量的产品原型。
 
-- [设计原则](/docs/spec/principle)
+- [设计原则](/docs/spec/proximity)
 - [设计模式](/docs/pattern/navigation)
 - [设计资源](/docs/resource/download)