Update README.md

Author: helje5

README.md

@@ -22,9 +22,7 @@ A built Swift lambda can then be deployed using `swift lambda deploy`
 
 Blog article: [Deploying Swift on AWS Lambda](http://www.alwaysrightinstitute.com/macrolambda/).
 
-Note: Due to a [bug](https://bugs.swift.org/browse/SR-13312) 
-      in Xcode 11's Swift 5.2.4, a Swift 5.3 install (e.g. Xcode beta 12) is 
-      currently required.
+Note: Requires a Swift 5.3 install (e.g. Xcode 12+).
 
 
 ## Installation