ini: add comments

backend/src/appenlight/templates/ini/production.ini.jinja2

@@ -81,6 +81,7 b' ziggurat_foundations.sign_in.came_from_key = came_from'
 #cometd
 cometd.server = http://127.0.0.1:8088
 cometd.secret = secret
+# change to # ws:// for development
 cometd.ws_url = wss://{{appenlight_domain}}/channelstream
 
 # for celery