Help: Typo and grammar fixes for file(GET_RUNTIME_DEPENDENCIES)

Note that ``MODULE`` s was rendering strangely, so the wording
has been tweaked to avoid needing to specify ``MODULE`` as a
plural word. Modules are still libraries, so it is okay to call them as
such where it doesn't cause any ambiguity.
6 jobs for docs-file-GET_RUNTIME_DEPENDENCIES
Status Name Job ID Coverage
  External
passed ghostflow-check-master

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