Update README.md

README.md

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 Youtube Sharp Api
 ===============
 
+[![NuGet](https://img.shields.io/nuget/dt/YoutubeSharpApi.svg)](https://www.nuget.org/packages/YoutubeSharpApi)
+[![NuGet](https://img.shields.io/nuget/v/YoutubeSharpApi.svg)](https://www.nuget.org/packages/YoutubeSharpApi)
+[![license](https://img.shields.io/github/license/omansak/YoutubeSharpApi.svg)](LICENSE)
+[![Join the chat at https://discord.gg/SERVhPp](https://user-images.githubusercontent.com/7288322/34429152-141689f8-ecb9-11e7-8003-b5a10a5fcb29.png)](https://discord.gg/SERVhPp)
+
 A minimal .NET STANDART wrapper for the Youtube Data API v3. Designed to let devs easily 
 fetch public data (Playlists info,Trending) from Youtube.
 The reason of returning the decoded JSON response directly is that you only need to read the Google API doc 
 to use this library.
 
+## Supported Platforms
+- NET ve .NET Core	            |   2.0, 2.1, 2.2, 3.0, 3.1, 5.0, 6.0
+- .NET Framework  	            |   4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8
+- Mono	                        |   5.4, 6.4
+- Xamarin.iOS	                    |   10.14, 12.16
+- Xamarin.Mac	                    |   3.8, 5.16
+- Xamarin.Android	                |   8.0, 10.0
+- Universal Windows Platform	    |   10.0.16299, TBD
+- Unity	                        |   2018,
+
 ## Features
 * Get Playlist Info All or Pagination 
 * Get Trending Info All or Pagination 
 * 90 Regions / 31 Youtube Category
 
 ## Requirements
-* .NET CORE >= 2.1
 * Newtonsoft Json Library
 
 ## Usage