docs(backendconfig): document access control group env vars#36

alubbock wants to merge 3 commits into

SciCatProject:mainSciCatProject/user-documentation:mainfrom

rosalindfranklininstitute:docs/access-control-env-varsrosalindfranklininstitute/scicat-user-documentation:docs/access-control-env-varsCopy head branch name to clipboard