Fix nginx conf

files/etc/nginx/hedgedocs-nginx.conf.j2

@@ -26,8 +26,8 @@ server {
     listen [::]:443 ssl http2;
     listen 443 ssl http2;
 
-    ssl_certificate /etc/letsencrypt/live/{{ service_hedgedocs_domain }}/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/{{ service_hedgedocs_domain }}/fullchain.pem;
+    ssl_certificate /etc/letsencrypt/live/{{ service_hedgedocs_domain.split("//")[0] | lower  }}/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/{{ service_hedgedocs_domain.split("//")[0] | lower  }}/privkey.pem;
 
   	# Improve HTTPS performance with session resumption
   	ssl_session_cache shared:SSL:10m;