Added English window-manager

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/readme/window-manager.md

+# Window Manager
+
+## Introduction
+
+The Window Manager subsystem provides basic capabilities of window and display management. It is the basis for UI display.
+
+The following figure shows the architecture of the Window Manager subsystem.
+
+![WindowManager-subsystem-architecture](./figures/WindowManager.png)
+
+- **Window Manager Client**
+
+    Provides window object abstraction and window management interfaces, and connects to the ability and UI framework.
+
+- **Display Manager Client**
+
+    Provides display information abstraction and display management interfaces.
+
+- **Window Manager Server**
+
+    Provides capabilities such as window layout, Z-order control, window tree structure, window dragging, and window snapshot, and offers the window layout and focus window for multimodal input.
+
+- **Display Manager Server**
+
+    Provides display information, screenshot, screen on/off, and brightness processing control, and processes the mapping between the display and screen.
+
+## Directory Structure
+```
+foundation/windowmanager/
+├── dm                      # Stores Display Manager Client implementation code
+├── dmserver                # Stores Display Manager Server implementation code
+├── interfaces              # Stores external APIs
+│   ├── innerkits           # Stores native APIs
+│   └── kits                # Stores JS APIs and native APIs
+├── resources               # Stores resource files used by the framework
+├── sa_profile              # Stores system service configuration files
+├── snapshot                # Stores implementation code of the screenshot command line tool
+├── utils                   # Stores tools
+├── wm                      # Stores Window Manager Client implementation code
+├── wmserver                # Stores Window Manager Server implementation code
+```
+
+## Constraints
+- Programming language version
+    - C++ 11 or later
+
+## Available APIs
+
+- [Window](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-window.md) 
+- [Display](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-display.md)
+
+## Repositories Involved
+- graphic_standard
+- ace_ace_engine
+- aafwk_standard
+- multimodalinput_input

zh-cn/readme/窗口子系统.md

-# 窗口子系统
-
--   [简介](#简介)
--   [目录](#目录)
--   [约束](#约束)
--   [接口说明](#接口说明)
--   [相关仓](#相关仓)
+# windowmanager
 
 ## 简介
 
-**窗口子系统** 提供窗口管理和Display管理的基础能力，是系统图形界面显示所需的基础子系统。其主要的结构如图1所示。
-**图 1**  窗口子系统架构图
+**窗口子系统** 提供窗口管理和Display管理的基础能力，是系统图形界面显示所需的基础子系统
+
+其主要的结构如下图所示：
 
 ![窗口子系统架构图](./figures/WindowManager.png)
 
 - **Window Manager Client**
 
-    应用进程窗口管理接口层，提供窗口对象抽象和窗口管理接口，对接元能力和UI框架。
+    应用进程窗口管理接口层，提供窗口对对象抽象和窗口管理接口，对接元能力和UI框架。
 
 - **Display Manager Client**
 
@@ -23,17 +18,17 @@
 
 - **Window Manager Server**
 
-    窗口管理服务，提供窗口布局、Z序控制、窗口树结构、窗口拖拽、窗口快照等能力，并提供窗口布局和焦点窗口给多模输入。
+    窗口管理服务，提供窗口布局、Z序控制、窗口树结构、窗口拖拽、窗口快照等能力，并提供窗口布局和焦点窗口给多模输入
 
 - **Display Manager Server**
 
-    Display管理服务，提供Display信息、屏幕截图、屏幕亮灭和亮度处理控制，并处理Display与Screen映射关系。
+    Display管理服务，提供Display信息、屏幕截图、屏幕亮灭和亮度处理控制，并处理Display与Screen映射关系
 
 ## 目录
 ```
 foundation/windowmanager/
-├── dm                      # Dislplay Manager Client实现代码
-├── dmserver                # Dislplay Manager Server实现代码
+├── dm                      # Display Manager Client实现代码
+├── dmserver                # Display Manager Server实现代码
 ├── interfaces              # 对外接口存放目录
 │   ├── innerkits           # native接口存放目录
 │   └── kits                # js/napi接口存放目录