Update u_e-nginx.md

docs/u_e-nginx.md

@@ -51,7 +51,7 @@ server {
   }
 
   location / {
-    proxy_pass http://127.0.0.1:3000/;
+    proxy_pass http://service:3000/;
     proxy_set_header Host $http_host;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;