Merge branch 'doc_tweak' into 'NIFTy_5'

add missing --user

See merge request !334
11 jobs for NIFTy_5 in 23 minutes and 26 seconds (queued for 2 seconds)
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  Build Docker
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  Test
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  Release
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  Demo Runs
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passed run_getting_started_3 #894761

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  Deploy
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