update readme

@@ -6,6 +6,9 @@
  * @Description: Update log
  -->
 
+# 3.0.1
+- update readme
+
 # 3.0.0
 - After a period of experimentation, I think it's time to release the official version
 

@@ -28,7 +28,7 @@ dependencies:
   flutter:
     sdk: flutter
   # add flutter_screenutil
-  flutter_screenutil: ^3.0.0
+  flutter_screenutil: ^3.0.1
 ```
 ### Add the following imports to your Dart code:
 ```

@@ -33,7 +33,7 @@ dependencies:
   flutter:
     sdk: flutter
   # 添加依赖
-  flutter_screenutil: ^3.0.0
+  flutter_screenutil: ^3.0.1
 ```
 ### 在每个使用的地方导入包：
 ```

@@ -28,7 +28,7 @@ dependencies:
   flutter:
     sdk: flutter
   # add flutter_screenutil
-  flutter_screenutil: ^3.0.0
+  flutter_screenutil: ^3.0.1
 ```
 
 ### Adicione o seguinte import em seu código Dart:

 name: flutter_screenutil
 description: A flutter plugin for adapting screen and font size.Guaranteed to look good on different models
-version: 3.0.0
+version: 3.0.1
 homepage: https://github.com/OpenFlutter/flutter_screenutil/tree/beta
 
 environment: