Merge branch 'improve_doc' into 'dev'

vidjil-format.md: minor update on seg fields

See merge request !499
5 jobs for dev in 5 minutes and 58 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test Tools
passed #371878
test_tools

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  Test Quality
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web
code_quality

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  Test Unit
passed #371880
web
test_browser_unit

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passed #371881
web
test_server_unit

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  Test Functional
passed #371882
docker x86_64
test_server_functional

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