Change Hyperlink

In this [section](https://docs.vaunt.dev/organizations/webhooks), we need help to update the URL to this address https://github.com/VauntDev/example/discussions/8, instead of linking to the example repo. 

<img width="848" alt="Image" src="https://github.com/user-attachments/assets/46e18ed9-a05b-4e7a-98a8-4cc9bf5543c8" />

