Update readme.md

readme.md

@@ -175,6 +175,15 @@ server {
   - extract static files and make them available via nginx: `./manage.py collectstatic`
   - you start application by starting gunicorn and nginx: `service gunicorn start`, `service nginx start`
 
+## Cron jobs (weekly emails)
+
+If weekly emails are required then cron must be edited to fire periodically django function that send emails.
+
+```
+> crontab -e
+*/5 * * * * source /home/ubuntu/.bashrc && source /home/ubuntu/work/your-project/bin/activate && python /home/ubuntu/work/your-project/src/manage.py runcrons > /home/ubuntu/cronjob.log
+```
+
 ## Operations
 
 ### Public holidays