authz: add docs and links to background permissions syncing (!10971) · Merge requests · Administrator / sourcegraph

Administrator requested to merge jc/update-perms-docs into master May 26, 2020

Created by: unknwon

Adds a section in docs to explain "complete sync vs incremental sync", and adds links to docs in corresponding pages.

Fixes #10190

authz: add docs and links to background permissions syncing