think about passing SOURCE constant for content
- https://hackernoon.com/5-reasons-why-newsletters-should-be-part-of-your-business-strategy
- https://hackernoon.com/organizing-an-advanced-structure-for-html-email-template
- https://hackernoon.com/how-i-started-to-build-react-components-for-email-templates
- https://hackernoon.com/introducing-a-simple-npm-module-with-email-templates
- https://hackernoon.com/glossary-for-non-technies
- https://hackernoon.com/email-marketing-and-how-to-curate-an-effective-business-newsletter
- https://hackernoon.com/exploring-substack-for-building-your-newsletter
- https://hackernoon.com/building-a-design-system-for-email-templates-react
- https://hackernoon.com/together4victory-list-of-email-marketing-tools
- https://hackernoon.com/cool-newsletters-for-developers-part-1
- https://hackernoon.com/cool-resources-for-sending-emails