typo

Author: RockfordWei

README.md

@@ -28,7 +28,6 @@
     <a href="https://developer.apple.com/swift/" target="_blank">
         <img src="https://img.shields.io/badge/Swift-4.0-orange.svg?style=flat" alt="Swift 4.0">
     </a>
-
     <a href="https://developer.apple.com/swift/" target="_blank">
         <img src="https://img.shields.io/badge/Platforms-OS%20X%20%7C%20Linux%20-lightgray.svg?style=flat" alt="Platforms OS X | Linux">
     </a>