Update nginx.md

docs/nginx.md

@@ -80,7 +80,7 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header Host $http_host;
         proxy_set_header X-NginX-Proxy true;
-        proxy_pass http://backendbeta;
+        proxy_pass http://backend;
         proxy_redirect off;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;