[MESOS-2680] Update modules doc with hook usage example

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.23.0
• Component/s: documentation, modules
• Labels: mesosphere
• Target Version/s: 0.23.0
• Epic Link: modules
• Sprint: Mesosphere Q1 Sprint 9 - 5/15
• Story Points: 1
• Assignee: Alex R
• Reporter: Alex R
• Shepherd: Niklas Quarfot Nielsen
• Created: 30/Apr/15 08:43
• Updated: 29/Apr/19 09:26
• Resolved: 26/Nov/18 12:20

Description

Modules doc states the possibility of using hooks, but doesn't refer to necessary flags and usage example.