link is broken

[doyoungim999]

https://cloud.ibm.com/docs/event-notifications?topic=event-notifications-en-source to
https://cloud.ibm.com/docs/monitoring?topic=monitoring-tutorial-en

[pradeep-b]

Thank you for the feedback. We will get this addressed.

[smguilia]

I have fixed all of the broken links. Thank you!