add a cocoapods podspec file

WrappingHStack.podspec

@@ -0,0 +1,19 @@
+Pod::Spec.new do |s|
+  s.name             = 'WrappingHStack'
+  s.version          = '2.2.2'
+  s.summary          = 'Like HStack, but automatically positions overflowing elements on next lines.'
+  s.description      = <<-DESC
+  WrappingHStack is a UI Element that works in a very similar way to HStack, but automatically positions overflowing elements on next lines.
+                       DESC
+
+  s.homepage         = 'https://github.com/dkk/WrappingHStack'
+  s.screenshots     = 'https://github.com/dkk/WrappingHStack/raw/main/example.png?raw=true'
+  s.license          = { :type => 'MIT', :file => 'LICENSE' }
+  s.author           = { 'Daniel Klöck' => 'kloeck@pappuga.com' }
+  s.source           = { :git => 'https://github.com/dkk/WrappingHStack.git', :tag => s.version.to_s }
+
+  s.ios.deployment_target = '13.0'
+  s.osx.deployment_target  = '10.15'
+  s.swift_version = '5.0'
+  s.source_files = 'Sources/WrappingHStack/**/*'
+end