[7.3] Restore vega.enableExternalUrls documentation [skip ci]#43004

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timroes merged 1 commit intoelastic:7.3from timroes:backport/7.3/pr-42820

Aug 9, 2019

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Commits on Aug 9, 2019

Update settings.asciidoc (elastic#42820 )

laraMorenoIgle
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timroes
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