Schema and Notification Service Onboarding Fix doc

This is a follow-up on Issue #52 (closed) and Issue #60 (closed)

The latest changes in the doccumentation are breaking the gitlab-sync pipeline.

Here is 2 patches: 0001-Fix-doccumentation.patch 0001-More-schema-service-doc-fix.patch

Could you grant me access to create branches to the infra-azure-provisioning repository? It will be easier for me to propose a merge request without having to create a New Issue.