use wechaty qrcode api service (wechaty/qrcode#1)

Author: huan

README.md

@@ -28,7 +28,7 @@ import (
 func main() {
   _ = wechaty.NewWechaty().
     OnScan(func(qrCode string, status schemas.ScanStatus, data string) {
-      fmt.Printf("Scan QR Code to login: %s\nhttps://api.qrserver.com/v1/create-qr-code/?data=%s\n", status, qrCode)
+      fmt.Printf("Scan QR Code to login: %s\nhttps://wechaty.github.io/qrcode/%s\n", status, qrCode)
     }).
     OnLogin(user *user.ContactSelf) { fmt.Printf("User %s logined\n", user) }).
     OnMessage(message *user.Message) { fmt.Printf("Message: %s\n", message) }).

examples/ding-dong-bot.go

@@ -33,7 +33,7 @@ func main() {
 	var bot = wechaty.NewWechaty()
 
 	bot.OnScan(func(qrCode string, status schemas.ScanStatus, data string) {
-		fmt.Printf("Scan QR Code to login: %v\nhttps://api.qrserver.com/v1/create-qr-code/?data=%s\n", status, qrCode)
+		fmt.Printf("Scan QR Code to login: %v\nhttps://wechaty.github.io/qrcode/%s\n", status, qrCode)
 	}).OnLogin(func(user *user.ContactSelf) {
 		fmt.Printf("User %s logined\n", user.Name())
 	}).OnMessage(onMessage).OnLogout(func(user *user.ContactSelf, reason string) {