Remove outdated text and link to up-to-date documentation
The PROCESS.md was a bit outdated and information was duplicated so I removed outdated stuff and add links to the up-to-date and relevant information.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The PROCESS.md was a bit outdated and information was duplicated so I removed outdated stuff and add links to the up-to-date and relevant information.