Update README.md

Author: TomWFox

README.md

@@ -3,6 +3,10 @@
 [![codecov](https://codecov.io/gh/parse-community/Parse-SDK-dotNET/branch/master/graph/badge.svg)](https://codecov.io/gh/parse-community/Parse-SDK-dotNET)
 [![Nuget][nuget-svg]][nuget-link]
 [![License][license-svg]][license-link]
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 ## Getting Started
 The latest stable release of the SDK is available as a [NuGet package][nuget-link]. Note that the latest package currently available on the official distribution channel is quite old.