Install ruby-markerb by entering the following commands in the terminal:
sudo apt update sudo apt install ruby-markerb
Description:
multipart templates made easy with Markdown + ERb
Markerb allows you to render multipart e-mails from a single template. The template is written in Markdown, which is delivered as a text part, but also rendered and delivered as an HTML part.
Homepage: http://github.com/plataformatec/markerb
Version: 1.1.0-2
Section: universe/ruby