Feature: Newsletter

[elpiel]

Is your feature request related to a problem? Please describe.
We are preparing for launching our own newsletter which means we need to automate some parts of the release of a newsletter.

Describe the solution you'd like
When doing a new newsletter we can create a new blog post for it and automatically send the newsletter once published on the website.

Describe alternatives you've considered

Related issues

• Social media tags shortcode for links of resources #16
• Newsletter: Markdown template to HTML and text for email #19
• Newsletter: Sending emails #20