Incorporate eng-hiring Resume Review content

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The eng-hiring site has content around Resume Review:
https://eng-hiring.18f.gov/resume-review/

The Eng chapter used to do the reviews, but we don't any longer. We'd like to remove this content from the eng-hiring site, but received feedback that the info was useful and should be available somewhere.

This Issue asks you to review the content on the page linked above and to incorporate relevant information into the join.tts.gsa.gov site.

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cc @rooneywp, @awfrancisco for visibility.