Updating ngrok in docker-compose.yml (#51)

Author: krazziekay

docker-compose.yml

@@ -2,10 +2,10 @@ version: '3'
 
 services:
   tunnel:
-    image: wernight/ngrok
+    image: ngrok/ngrok:latest
     ports:
       - "4040:4040"
-    command: ngrok http -log stdout -hostname=$NGROK_DOMAIN --authtoken $NGROK_AUTHTOKEN app:3000
+    command: http --log stdout --domain $NGROK_DOMAIN --authtoken $NGROK_AUTHTOKEN app:3000
 
   app:
     container_name: connect-example-app-node