delete content marketing file to resolve merge conflict

source/handbook/marketing/content/index.html.md

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-layout: markdown_page
-title: Content Marketing
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-Content Marketing is part of the Marketing Team and specializes in creating cross-functional content marketing lead generation campaigns and strategies across the GitLab website, blog, social channels and newsletters.
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-Content Marketing focuses exclusively on create content campaigns and strategies for the purpose of lead generation either directly through gated assets or indirectly by promoting a gated assets.
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-## What content assets does Content Marketing create for the purpose of lead generation?
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-- Webinars
-- Blog posts
-- Newsletters
-- Social updates
-- Surveys and reports
-- White papers
-- eBooks
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-## Can anyone contribute to the blog and social channels?
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-Absolutely yes! Content Marketing is not the only source of content for these channels, all GitLab team members and the extended community are encouraged to contribute. If you have a great idea for a blog post, or think that documentation article could benefit from a video guide, create it! These channels are for anyone involved with GitLab to help the GitLab community.