feat: add branding top nav link back

[dave52]

• add marketing branding links to footer and top nav back
• add marketing PDF as Netlify served asset
• grammar change from feedback to Mission Control text on homepage

[netlify[bot]]

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[github-actions[bot]]

Alex Recommends Report

Alex recommends the following language changes, but Alex is a regular expression based algorithm, so take them with a grain of salt.

:sparkles: :rocket: :sparkles: Nothing to Report :sparkles: :rocket: :sparkles: