Update Version and missing http2

Author: deutschepost

synapse.subdomain.conf.sample

@@ -1,8 +1,8 @@
-## Version 2021/10/02
+## Version 2021/10/03
 
 server {
-    listen 443 ssl;
-    listen [::]:443 ssl;
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
 
     # For the federation port
     listen 8448 ssl http2 default_server;