docs: enable toc to all docs (#48424)

CHANGELOG.zh-CN.md

@@ -1,7 +1,6 @@
 ---
 order: 6
 title: 更新日志
-toc: false
 timeline: true
 tag: vVERSION
 ---

components/icon/index.en-US.md

@@ -3,7 +3,6 @@ category: Components
 group: General
 title: Icon
 description: Semantic vector graphics.
-toc: false
 showImport: false
 cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*PdAYS7anRpoAAAAAAAAAAAAADrJ8AQ/original
 coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*xEDOTJx2DEkAAAAAAAAAAAAADrJ8AQ/original

components/icon/index.zh-CN.md

@@ -4,7 +4,6 @@ subtitle: 图标
 description: 语义化的矢量图形。
 group: 通用
 title: Icon
-toc: false
 showImport: false
 cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*PdAYS7anRpoAAAAAAAAAAAAADrJ8AQ/original
 coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*xEDOTJx2DEkAAAAAAAAAAAAADrJ8AQ/original

docs/react/contributing.en-US.md

@@ -3,7 +3,6 @@ group:
   title: Other
 order: 1
 title: Contributing
-toc: false
 ---
 
 The following is a set of guidelines for contributing to Ant Design. Please spend several minutes reading these guidelines before you create an issue or pull request.

docs/react/contributing.zh-CN.md

@@ -3,7 +3,6 @@ group:
   title: 其他
 order: 1
 title: 贡献指南
-toc: false
 ---
 
 这篇指南会指导你如何为 Ant Design 贡献自己的一份力量，请你在提 issue 或者 pull request 之前花几分钟来阅读一遍这篇指南。

docs/resources.en-US.md

@@ -2,7 +2,6 @@
 order: 1
 title: Resources
 description: List all the resources that are related with Ant Design here.
-toc: false
 ---
 
 ## Design Resources

docs/resources.zh-CN.md

@@ -2,7 +2,6 @@
 order: 1
 title: 资源
 description: 这里汇总了与 Ant Design 相关的所有资源。
-toc: false
 ---
 
 ## 设计资源