Add link to MimeTypes.kt in README.md

Author: Mark Whitaker

README.md

@@ -9,3 +9,5 @@ Pull requests welcome!
 
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 ![icon](https://raw.githubusercontent.com/markwhitaker/MimeTypes.NET/master/Artwork/MimeTypes-icon-32.png) **.NET developer?** Check out the .NET version of this library, [MimeTypes.NET](https://github.com/markwhitaker/MimeTypes.NET).
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+![icon](https://raw.githubusercontent.com/markwhitaker/MimeTypes.kt/master/artwork/MimeTypes-icon-32.png) **Kotlin developer?** Check out the Kotlin version of this library, [MimeTypes.kt](https://github.com/markwhitaker/MimeTypes.kt).