Merge pull request #9 from blackbone/develop

fix nuget config

Author: blackbone

.nuget/NuGet.config

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <packageSources>
-        <add key=".NET Core (MyGet)" value="https://dotnet.myget.org/F/dotnet-core/api/v3/index.json" />
-        <add key="Roslyn (MyGet)" value="https://dotnet.myget.org/F/roslyn/api/v3/index.json" />
+        <add key=".NET 5" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json" />
+        <add key=".NET TOOLS" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
+        <add key="NuGet v3" value="https://api.nuget.org/v3/index.json" />
     </packageSources>
 </configuration>