Added screenshot to .podspec

Author: David Jonsén

DJSemiModalViewController.podspec

@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   s.description      = 'DJSemiModalViewController is a semi modal presentation dialog that grows with it´s added content. DJSemiModalViewController works for iPhone and iPad. The content is added to a UIStackView that is inside of an UIScrollView that adds scroll if needed. DJSemiModalViewController mimic the design of the standard NFC dialog on iPhone.'
 
   s.homepage         = 'https://github.com/davnag/DJSemiModalViewController'
-  # s.screenshots     = 'www.example.com/screenshots_1', 'www.example.com/screenshots_2'
+  s.screenshots      = 'https://raw.githubusercontent.com/davnag/DJSemiModalViewController/master/screenshots_1.png'
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
   s.author           = { 'David Jonsén' => '[email protected]' }
   s.source           = { :git => 'https://github.com/davnag/DJSemiModalViewController.git', :tag => s.version.to_s }