docs: sync from 881bd9b
docs: sync from 4e4702f
docs: sync from 58afebc
docs: sync from 05e95a0
docs: sync from 83999a7
docs: sync from c6771be
docs: sync from 30003b6
docs: chart 2.2.0, not 3.0.0
docs: image.tag required since chart 3.0.0
docs(wiki): add operating and advanced guides