Added NuGet badge

README.md

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 # Vdf.NET
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+[![NuGet](https://img.shields.io/nuget/v/Gameloop.Vdf.svg?style=flat-square)](https://www.nuget.org/packages/Gameloop.Vdf)
+
 A fast, easy-to-use Valve Data Format parser for .NET
 
 ## Getting Binaries
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 There are no releases yet.
 
 ## Documentation
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 There is currently no documentation for the project. It will be added in a future release.<br>
 For now, just use `VdfConvert.DeserializeObject(string)`.
 
 ## License
-Vdf.NET is released under the [MIT license](https://opensource.org/licenses/MIT).
+
+Vdf.NET is released under the [MIT license](https://opensource.org/licenses/MIT).