Update nuget.config

Author: Abdesol

CutCode.CrossPlatform/nuget.config

@@ -3,6 +3,7 @@
   <packageSources>
     <!--To inherit the global NuGet package sources remove the <clear/> line below -->
     <clear />
+    <add key="Aura.UI Myget" value="https://www.myget.org/F/auraui/api/v3/index.json" />
     <add key="nuget" value="https://api.nuget.org/v3/index.json" />
   </packageSources>
 </configuration>