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

examples/client/.gitignore

@@ -0,0 +1 @@
+client

examples/client/README.md

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+# client
+
+[Run the service first](../service)
+
+Then, compile + run:
+
+```
+go build
+./client
+```
+
+Check out other services:
+
+```
+./client <service-tag>
+./client _foobarbaz._tcp
+```

examples/client/main.go

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+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+
+	"github.com/micro/mdns"
+)
+
+func main() {
+
+	serviceTag := "_foobar._tcp"
+	if len(os.Args) > 1 {
+		serviceTag = os.Args[1]
+	}
+
+	// Make a channel for results and start listening
+	entriesCh := make(chan *mdns.ServiceEntry, 8)
+	defer close(entriesCh)
+
+	go func() {
+		for entry := range entriesCh {
+			fmt.Printf("Got new entry: %v\n", entry)
+		}
+	}()
+
+	// Start the lookups
+	err := mdns.Lookup(serviceTag, entriesCh)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	wait()
+}
+
+func wait() {
+	ch := make(chan os.Signal)
+	signal.Notify(ch, os.Interrupt, os.Kill)
+	<-ch
+}