Fix compability with ios 11.

Author: ivanvorobei

Example App/SPAlert.xcodeproj/project.xcworkspace/xcuserdata/ivanvorobei.xcuserdatad/UserInterfaceState.xcuserstate

@@ -5,7 +5,7 @@ import PackageDescription
 let package = Package(
     name: "SPAlert",
     platforms: [
-        .iOS(.v10)
+        .iOS(.v11)
     ],
     products: [
         .library(

Package.swift

@@ -46,7 +46,7 @@ If you like the project, don't forget to `put star ★` and follow me on GitHub:
 
 ## Installation
 
-Ready for use on iOS 10+. Works with Swift 5+. Required Xcode 12.5 and higher.
+Ready for use on iOS 11+. Works with Swift 5+. Required Xcode 12.5 and higher.
 
 <img align="right" src="https://github.com/ivanvorobei/SPAlert/blob/main/Assets/Readme/SPM%20Install%20Preview.png" width="520"/>