add Event specific procedure in Before you start section

We need to have a proper procedure in place for k8s-based service owners to request resources for a ) new namepsace , b) increased (temporal or permanent) resources for prod or dev environments in an already available namespace.

I am assigning @elmath as reviewer - Events procedure is already established: do you think is clear what service owners need to do in either cases?

this refers to https://gitlab.ebrains.eu/ri/tech-hub/devops/base/-/issues/140 -> k8s based task