add nginx listen 443 and certs to default config

docker/root/defaults/default

@@ -1,9 +1,14 @@
 server {
     listen 80 default_server;
     listen [::]:80 default_server;
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
 
     server_name _;
 
+    ssl_certificate /config/keys/cert.crt;
+    ssl_certificate_key /config/keys/cert.key;
+
     root /config/www;
     index index.html index.htm index.php;