moar refs

Backgrounds: rbac: add ref

Conclusion: future: refs :p

Evaluation: environment and config

Conclusion: future: virtual cluster

Backgrounds: add term "operator pattern"

used in keywords, and will be used in future works for limitation on not
being able to extend kubernetes api

Conclusion: future: organization

Conclusion: future: <DB, etc>aaS

Conclusion: future: CRI hardening

Conclusion: future: add NetworkPolicy

Architecture: wordings: use tenancy

we do already introduced it via multi-tenancy, and it is more precise

Conclusion: outline future works

test push

unify ref styles

enrich refs

Architecture: more consistent subsection titles

remove topic

Architecture: revisit

Architecture: revisit until cel

lower case v