Update README.md

Author: kewlbear

README.md

@@ -5,7 +5,7 @@ This swift package enables you to use python modules in your iOS apps.
 ## Installation
 
 ```
-.package(url: "https://github.com/kewlbear/Python-iOS.git", .branch("kivy-ios"))
+.package(url: "https://github.com/kewlbear/Python-iOS.git", from: "0.1.1-b")
 ```
 
 ## Usage