Merge branch 'docs-corrections' into 'master'

docs: corrections regarding grammar, punctuation and cropped text

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/148945



Merged-by: Achilleas Pipinellis <axil@gitlab.com>
Approved-by: Achilleas Pipinellis <axil@gitlab.com>
Co-authored-by: Markus Heidelberg <m.heidelberg@cab.de>