typo

nginx.conf

@@ -19,7 +19,7 @@ http {
     include           /etc/nginx/sites-enabled/*;
     server {
         listen 80 default_server;
-        listen [::]:880;
+        listen [::]:80;
         server_name _;
         location /.well-known {
             alias /srv/letsencrypt/.well-known;