Make SPM deployment targets consistent with Podfile

CHANGELOG.md

@@ -3,6 +3,9 @@ Changelog
 
 ## master
 
+ - Allow iOS 11, tvOS 11, macOS 10.13 as deployment target with SPM.
+   [#41](https://github.com/siteline/SwiftUI-Introspect/pull/41)
+
 ## [0.1.1]
 
  - Allow `Introspect` to be imported in apps that support older platform versions.

Introspect.podspec

@@ -13,7 +13,7 @@ Pod::Spec.new do |spec|
   spec.source_files = 'Introspect/*.swift'
 
   spec.swift_version = '5.1'
-  spec.ios.deployment_target = '13.0'
-  spec.tvos.deployment_target = '13.0'
-  spec.osx.deployment_target = '10.15'
+  spec.ios.deployment_target = '11.0'
+  spec.tvos.deployment_target = '11.0'
+  spec.osx.deployment_target = '10.13'
 end