update README

README.md

@@ -26,6 +26,13 @@ Customizable Icons for Flutter,Inspired by [react-native-vector-icons](https://g
 ## Usage
 To use this plugin, add `flutter_icons` as a [dependency in your pubspec.yaml file](https://flutter.io/platform-plugins/).
 
+## Static Methods
+
+| Prop                 | Description                                                                                                                                                                               |
+| -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| **`getIconData`**  | Returns the IconData object,eg : ```IconData iconData = AntDesign.getIconData("stepforward")``` |
+| **`hasIconData`**  | Checks if the name is valid in current icon set.eg: ```bool isNameValid = AntDesign.hasIconData("stepforward")```|
+
 ## Example
 
 ``` dart

README_zh-CN.md

@@ -26,6 +26,13 @@
 ## 使用
 要使用此插件包,请将flutter_icons作为依赖项添加到您的`pubspec.yaml`文件中,详见[dependency in your pubspec.yaml file](https://flutter.io/platform-plugins/).
 
+## 静态方法
+
+| Prop                 | Description                                                                                                                                                                               |
+| -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| **`getIconData`**  | 返回IconData对象供Icon使用,eg : ```IconData iconData = AntDesign.getIconData("stepforward")``` |
+| **`hasIconData`**  | 检查是否存在name对应的IconData对象，返回布尔值，eg: ```bool isNameValid = AntDesign.hasIconData("stepforward")```|
+
 ## 示例
 
 ``` dart