correct port number to 80

conf.d/opticswiki.conf

@@ -15,7 +15,7 @@ server {
     ssl_certificate_key /etc/nginx/private/opticswiki.psi.ch.key;
 
     location / {
-        proxy_pass http://opticswiki:8090;
+        proxy_pass http://opticswiki:80;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;