add command to change site name and hostname to README.md#281

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ricki-z wants to merge 4 commits intoGetTogetherComm:masterfrom opendata-stuttgart:master

+28-1

Commits on Jun 2, 2020

Commits on Nov 6, 2020

remove maps if GOOGLE_MAPS_API_KEY is empty
ricki-z
committed

Commits on Jun 9, 2021

Merge branch 'GetTogetherComm:master' into master
ricki-z
committed