AsciiDoc converted to HTML/PDF files and published on gh-pages with Asciidoctor Docker from Travis CI

How to convert AsciiDoc to HTML/PDF files output and publish it to gh-pages with Travis CI, Asciidoctor and Docker.

This blog post describes the workflow used to do it:

Figure 1. Convert your AsciiDoc files and Publish the HTML/PDF output to GH Pages thanks to Travis and Asciidoctor with Docker