In commit 5a7b12e we normalized settings.yml and c6a5cc019 and de5a8ee7d we
changed instance name to ``instance_name: "SearXNG"``.
This patch adjust the sed expressions to modify:
dockerfiles/docker-entrypoint.sh
Closes: https://github.com/searxng/searxng/issues/876
Suggested-by: @neiaberau
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>