update prod.md

example_config/nginx_example.conf

@@ -74,7 +74,7 @@ server {
     location / {
         return 301 https://$host$request_uri;
 		# If you don't want https redirection, or are using something like cloudflare to manage HTTPS, comment out the line above and uncomment the line below
-		# proxy_pass http://127.0.0.1:8080/;
+		# proxy_pass http://127.0.0.1:8090/;
     }
 }
 
@@ -100,6 +100,6 @@ server {
 	location / {
 		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 		proxy_pass_request_headers on;
-		proxy_pass http://127.0.0.1:8080/;
+		proxy_pass http://127.0.0.1:8090/;
 	}
 }