(chore): end of year email template

Core/Email/Campaigns/Templates/eoy-2019.md.tpl

+Thank you for a groundbreaking year. We are at the leading edge of a new model for Internet companies focused on transparency, privacy, monetization, decentralized infrastructure and digital democracy. 
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+Please take a moment to read an overview of our major accomplishments from 2019 as well as a preview of the next evolution of Minds. We encourage you to follow the links to see some of the new designs coming next year for a total revamp of the app and user experience. 
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+| [![Read blog](https://cdn-assets.minds.com/emails/read-blog.png){=150x}](https://www.minds.com/minds/blog/2019-and-beyond-1056269757038587904?__e_ct_guid=<?= $vars['guid']?>&campaign=<?= $vars['campaign']?>&topic=<?= $vars['topic'] ?>&validator=<?= $vars['validator'] ?>) |
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+Thank you for being a part of our journey.