Add examples https://github.com/hashicorp/mdns/pull/42

examples/service/.gitignore

@@ -0,0 +1 @@
+service

examples/service/README.md

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+# service
+
+Compile + run:
+
+```
+go build
+./service
+```
+
+[The, run the client](../service)
+
+
+Use another service tag
+
+```
+./service <service-tag>
+./service _foobarbaz._tcp
+```

examples/service/main.go

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+package main
+
+import (
+	"log"
+	"os"
+	"os/signal"
+
+	"github.com/micro/mdns"
+)
+
+func main() {
+
+	serviceTag := "_foobar._tcp"
+	if len(os.Args) > 1 {
+		serviceTag = os.Args[1]
+	}
+
+	// Setup our service export
+	host, err := os.Hostname()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	info := []string{"My awesome service"}
+	service, err := mdns.NewMDNSService(host, serviceTag, "", "", 8000, nil, info)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Create the mDNS server, defer shutdown
+	server, err := mdns.NewServer(&mdns.Config{Zone: service})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	defer server.Shutdown()
+
+	wait()
+}
+
+func wait() {
+	ch := make(chan os.Signal)
+	signal.Notify(ch, os.Interrupt, os.Kill)
+	<-ch
+}