use nuget.org feed

NuGet.config

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
-    <add key="myget.org Six Labors" value="https://www.myget.org/F/sixlabors/api/v3/index.json" />
     <add key="myget.org dotnet-core" value="https://dotnet.myget.org/F/dotnet-core/api/v3/index.json" />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
     <add key="nuget.org" value="https://www.nuget.org/api/v2/" />

src/ImageSharp.Drawing.Paths/project.json

@@ -44,7 +44,7 @@
     "ImageSharp.Drawing": {
       "target": "project"
     },
-    "SixLabors.Shapes": "0.1.0-ci0050",
+    "SixLabors.Shapes": "0.1.0-alpha0001",
     "StyleCop.Analyzers": {
       "version": "1.0.0",
       "type": "build"