[7.2] Documents the new deprecations options on the rest-api-spec (#41444)#43089

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Mpdreamz merged 1 commit intoelastic:7.2from Mpdreamz:backport/7.2/document-deprecation-rest-spec

Jun 11, 2019

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Commits on Jun 11, 2019

Documents the new deprecations options on the rest-api-spec (elastic#41444 )
Mpdreamz
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