Simplyfy nginx config

[andypost]

https://github.com/skilld-labs/skilld-docker-nginx/blob/master/drupal8.conf

looks too complicated, I'm sure better to decide what we really need from it

[andypost]

Need to add /core/modules/statistics/statistics.php to nginx config to allow statistics module usage

[andypost]

Also please add

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

[andypost]

https://github.com/drupal-docker/nginx/blob/master/stable-alpine/drupal.conf