add usage block to readme

README.md

@@ -38,6 +38,17 @@ For local development do
 
 Edit the `config.php` and add/change settings for accessing the API.
 
+## Usage
+
+To start sending emails or SMS notifications from a database queue, the following scripts can be integrated into a cron job that processes the jobs at a desired interval.
+
+To start a dispatch, the parameter --send should be set. If you also want an output of the sent jobs, the parameter --verbose can be added. A DryRun is obtained by using only the --verbose parameter without --send.
+
+```
+php -d mail.add_x_header=0 $BIN/mail_queue.php --send "$@"
+php -d mail.add_x_header=0 $BIN/notification_queue.php --send "$@"
+```
+
 ## Testing
 
 To test application run the following command: