Read input from stdin, push to stderr. Baby's first go

sinks/adsb-ws/main.go

@@ -10,6 +10,7 @@ var addr = flag.String("addr", ":8080", "http service address")
 
 func main() {
 	flag.Parse()
+	go readInput()
 	http.HandleFunc("/stream", serveStream)
 	err := http.ListenAndServe(*addr, nil)
 	if err != nil {