Minor improvements request: Permissions required to interact with corresponding services aren't present in docs

[vponoikoait]

In order to build minimum-required permissions role and ensure target stability it may require additional testing to be done or source code investigation.
It would be nice to have separate section (?) with the highlight of permissions which may be required for policy reporter to work, for example, with AWS SecuityHub
https://kyverno.github.io/policy-reporter/core/targets#aws-securityhub