add Swift version and license badge

Author: DivineDominion

Diff for: README.md

@@ -1,3 +1,8 @@
+![Swift 4.2](https://img.shields.io/badge/Swift-4.2-blue.svg?style=flat)
+![License](https://img.shields.io/github/license/ReSwift/GitHubBrowserExample.svg?style=flat)
+
+----
+
 Work-in-Progress Real World Example for Swift Flow.
 
 This project is currently driving some API changes, so it is using newer APIs than provided by the latest Swift Flow releases.
@@ -31,4 +36,4 @@ Open `Credentials.swift` and enter the **Client ID** and the **Client Secret** o
 // Insert GitHub Token and Secret Here
 let gitHubClientId = ""
 let gitHubClientSecret = ""
-```
+```