Add proper example stack

stack.env.example

@@ -2,15 +2,14 @@ APP_PORT=5006
 REPO_DIR=.
 APP_LOCAL_SETTINGS=./app/local_settings.py
 APP_DATABASE_FILE=./db.sqlite3
-DOMAIN=dev.local
-URL=http://127.0.0.1:5006
-ALLOWED_HOSTS=127.0.0.1,dev.local,zm.is,localhost,xf
-NOTIFY_TOPIC=some-ntfy-topic
-CSRF_TRUSTED_ORIGINS=http://127.0.0.1:5006,http://localhost:5006,http://qi:5006
+DOMAIN=example.com
+URL=https://example.com
+ALLOWED_HOSTS=example.com
+NOTIFY_TOPIC=example-topic
+CSRF_TRUSTED_ORIGINS=https://example.com
 DEBUG=y
-SECRET_KEY=asdkld00s0s0ds
-STATIC_ROOT=/conf/static
-REGISTRATION_OPEN=1
-OPERATION=dev
-PROFILER=0
+SECRET_KEY=
+STATIC_ROOT=/code/static
+REGISTRATION_OPEN=0
+OPERATION=uwsgi
 BILLING_ENABLED=0