更新readme

README.md

@@ -22,7 +22,8 @@
 ## 一. Installation 安装
 
 #### CocoaPods
-> pod 'TZImagePickerController'
+> pod 'TZImagePickerController'   #iOS8 and later
+> pod 'TZImagePickerController', '2.2.6'   #iOS6、iOS7
 
 #### Carthage
 > github "banchichen/TZImagePickerController"
@@ -50,6 +51,13 @@
    如果运行在iOS6或7系统上，用的是AssetsLibrary库获取照片资源。  
    如果运行在iOS8及以上系统上，用的是PhotoKit库获取照片资源。
    
+   TZImagePickerController uses Camera、Location、Microphone、Photo Library，you need add these properties to info.plist like Demo：    
+   TZImagePickerController使用了相机、定位、麦克风、相册，请参考Demo添加下列属性到info.plist文件：
+	`Privacy - Camera Usage Description`     
+	`Privacy - Location When In Use Usage Description`    
+ 	`Privacy - Microphone Usage Description`   
+ 	`Privacy - Photo Library Usage Description`   
+   
 ## 四. More 更多 
 
   If you find a bug, please create a issue.