DIG example in README

Author: stephbu

README.md

@@ -23,6 +23,9 @@ This software is licenced under MIT terms that permits reuse within proprietary
 // check that the tests run
 >> dotnet test
 
+// use DIG query appconfig'd local server
+dig -p 5335 @127.0.0.1 www.google.com A 
+
 ```
 
 ## Gotchas