Updated Procedures, event hooks and cronjobs as Python scripts (markdown)

Procedures,-event-hooks-and-cronjobs-as-Python-scripts.md

@@ -51,4 +51,21 @@ from platypush.message.event.assistant import SpeechRecognizedEvent
 @hook(SpeechRecognizedEvent)
 def test_procedure(event, **content):
     print('Recognized speech: {}'.format(event.args['phrase']))
+```
+As well as cronjobs:
+
+```python
+# ~/.config/platypush/scripts/test.py
+
+from platypush.cron import cron
+from platypush.utils import run
+
+# Run it every minute
+@cron('* * * * *')
+def test_cron(event, **content):
+    import os
+    import datetime
+
+    with open(os.path.expanduser('~/test.txt'), 'a') as f:
+        f.write('The time is: {}\n'.format(datetime.datetime.now().isoformat()))
 ```