visual.md (#11710)

* visual.md

This is the translation for the website's contents. 
Review this and merge if it satisfies the content delivery team.

* docs: separate two version of visual.md

docs/spec/visual.en-US.md

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+---
+order: 4
+title: Visualization
+---
+
+The visual language is based on a set of design guidelines with data visualization features derived from the intermediate design language Ant Design, which makes the data expression more in line with the user's psychology, helping the “designer” to incubate visual solutions with more business characteristics to meet the individualization. Design requirements, shielding unnecessary design differences and implementation costs, thus liberating the "designer" and front-end R&D resources, and achieving comprehensive improvement of data chart development efficiency.
+
+At the same time, this is a dynamically updated design document, your reading and feedback is the driving force for us to continue to advance, [GitHub feedback address] (https://github.com/antvis/site/issues)
+
+## Design Resources
+
+We provide comprehensive design principles & guidelines and design resource files (Sketch), as well as a complete graphical usage note to help users quickly understand charts and design high quality visualization charts.
+
+- [Design Principles] (https://antv.alipay.com/zh-cn/vis/design/color.html)
+- [Design Resources] (https://antv.alipay.com/en-us/vis/resource/index.html)
+- [chart usage] (https://antv.alipay.com/zh-cn/vis/chart/index.html)
+
+## Front end implementation
+
+We encapsulate a set of AntV component libraries based on native JavaScipt, which includes a high-interaction base chart library G2, a chart library G6 focusing on process and relationship analysis, a chart library F2 for mobile applications, and other frameworks in the community. Implementation version.
+
+- [G2 (official implementation)] (https://antv.alipay.com/zh-cn/g2/3.x/index.html)
+- [G6 (official implementation)] (https://antv.alipay.com/zh-cn/g6/1.x/index.html)
+- [F2 (official implementation)] (https://antv.alipay.com/zh-cn/f2/3.x/index.html)
+- [BizCharts (React)](https://alibaba.github.io/BizCharts/)
+- [Viser (React / Vue / Angular)](https://viserjs.github.io/)

docs/spec/visual.zh-CN.md

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 order: 4
-title:
+title: 可视化
-  zh-CN: 可视化
-  en-US: Visualization
 ---
 
 可视化语言是基于中台设计语言 Ant Design 衍生的一套具有数据可视化特性的设计指导原则，让数据表达更符合用户心理，帮助『设计者』孵化出更具业务特性的可视化解决方案以满足个性化设计需求，屏蔽不必要的设计差异和实现成本，从而解放『设计者』和前端的研发资源，实现全面提高数据图表的研发效率。