Added nuget.config

Terminal.sln

@@ -21,6 +21,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.github\workflows\dotnet-core.yml = .github\workflows\dotnet-core.yml
 		GitVersion.yml = GitVersion.yml
 		global.json = global.json
+		nuget.config = nuget.config
 		.github\workflows\publish.yml = .github\workflows\publish.yml
 		README.md = README.md
 		testenvironments.json = testenvironments.json

nuget.config

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <config>
+    <add key="defaultPushSource" value="https://api.nuget.org/v3/index.json" />
+  </config>
+  <packageSources>
+
+    <!--To inherit the global NuGet package sources remove the <clear/> line below -->
+    <clear />
+    <add key="nuget" value="https://api.nuget.org/v3/index.json" />
+  </packageSources>
+</configuration>