Update screenshots URLs

README.md

@@ -9,7 +9,7 @@ The png files are saved into `~/Desktop/UIKit Artwork Extractor-version` where *
 *UIKit Artwork Extractor* can also generate glossy buttons png files. Thanks to [@schwa](http://twitter.com/schwa/status/9288691077) for the original code. Three states (normal/highlighted/disabled) glossy buttons png files are saved into the same directory as UIKit artwork png files.
 
 # Screenshots #
-![Artwork](http://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/Artwork.png "Artwork")
-![UISwitch](http://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/UISwitch.png "UISwitch")
-![Emoji](http://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/Emoji.png "Emoji")
-![Glossy Button](http://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/GlossyButton.png "Glossy Button")
+![Artwork](https://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/Artwork.png "Artwork")
+![UISwitch](https://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/UISwitch.png "UISwitch")
+![Emoji](https://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/Emoji.png "Emoji")
+![Glossy Button](https://github.com/0xced/UIKit-Artwork-Extractor/raw/master/Screenshots/GlossyButton.png "Glossy Button")