change column name

generate_config.sh

@@ -290,7 +290,7 @@ REDIS_PORT=127.0.0.1:7654
 
 # Your timezone
 # See https://en.wikipedia.org/wiki/List_of_tz_database_time_zones for a list of timezones
-# Use the row named 'TZ database name' + pay attention for 'Notes' row
+# Use the column named 'TZ identifier' + pay attention for the column named 'Notes'
 
 TZ=${MAILCOW_TZ}