Add Public NuGet Feed to Support Developers Without Private Feed Acce…

…ss (#393) (#396)

* change feed

* add internal back

* update the order

* remove internal one

* update the template

* add comments back

* remove another one

Samples/nuget.config

@@ -9,11 +9,9 @@
     </packageRestore>
     <packageSources>
         <clear />
-        <!--
-            Resort to using this direct reference to nuget.org in case of no access to the internal feed below.
-            <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
-        -->
-        <add key="ProjectReunion internal" value="https://microsoft.pkgs.visualstudio.com/ProjectReunion/_packaging/Project.Reunion.nuget.internal/nuget/v3/index.json" />
+        <!-- publicly accessible NuGet feed -->
+        <add key="WinAppSDK-SampleDeps"
+            value="https://pkgs.dev.azure.com/shine-oss/WinAppSDK-Samples/_packaging/WinAppSDK-SampleDeps/nuget/v3/index.json" />
 
         <!-- a local directory to allow testing nupkg files without pushing to a remote feed -->
         <add key="localpackages" value="localpackages" />