nixos/doc: fix typos in settings-options section

NotAShelf ce5cf79e 29cfe5bd

Changed files
+1 -1
nixos
doc
manual
+1 -1
nixos/doc/manual/development/settings-options.section.md
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`multiline` (default `true`)
-
: Whether to procude a multiline output. The output may still wrap across
multiple lines if it would otherwise exceed `columnWidth`.
`columnWidth` (default `100`)
···
`multiline` (default `true`)
+
: Whether to produce a multiline output. The output may still wrap across
multiple lines if it would otherwise exceed `columnWidth`.
`columnWidth` (default `100`)