update readme

Author: mbi88

README.md

@@ -3,15 +3,15 @@
 [![CocoaPods Compatible](https://img.shields.io/cocoapods/v/UserReport.svg)](https://cocoapods.org/pods/UserReport)
 [![Platform](https://img.shields.io/cocoapods/p/UserReport.svg?style=flat)](http://cocoadocs.org/docsets/UserReport)
 ![Xcode 9.0](https://img.shields.io/badge/Xcode-9.0-blue.svg)
-![iOS 10.0+](https://img.shields.io/badge/iOS-10.0%2B-blue.svg)
+![iOS 9.0+](https://img.shields.io/badge/iOS-9.0%2B-blue.svg)
 ![Swift 4.2](https://img.shields.io/badge/Swift-4.2-orange.svg)
 [![License](https://img.shields.io/cocoapods/l/UserReport.svg)](https://raw.githubusercontent.com/AudienceProject/userreport-ios-sdk/master/LICENSE)
 
 
 
 ## Requirements
 - Xcode 9.0+
-- iOS 10.0+
+- iOS 9.0+
 
 ## Installation
 UserReport iOS SDK can be installed in various ways.