update README.md for Swift 5.3

Author: dastrobu

README.md

@@ -1,6 +1,6 @@
 # AccelerateArray
 
-[![Swift Version](https://img.shields.io/badge/swift-5.2-blue.svg)](https://swift.org) 
+[![Swift Version](https://img.shields.io/badge/swift-5.3-blue.svg)](https://swift.org) 
 ![Platform](https://img.shields.io/badge/platform-osx--64-lightgray.svg)
 [![Build Travis-CI Status](https://travis-ci.org/dastrobu/AccelerateArray.svg?branch=master)](https://travis-ci.org/dastrobu/AccelerateArray) 
 [![documentation](https://github.com/dastrobu/AccelerateArray/raw/master/docs/badge.svg?sanitize=true)](https://dastrobu.github.io/AccelerateArray/)
@@ -41,7 +41,7 @@ additional types, which can be easily built on top of this package.
 
 ### Swift Package Manager
     dependencies: [
-            .package(url: "https://github.com/dastrobu/AccelerateArray.git", from: "0.3.0"),
+            .package(url: "https://github.com/dastrobu/AccelerateArray.git", from: "0.3.1"),
         ],
         
 ### Cocoa Pods