Asciidoc syntax is quite readable as a plain text file, but not as easy as the same file rendered as HTML or PDF.
If you want to quickly test the final render of your file the following tools can be useful.
#1 - Asciidoctor.js Live Preview
Asciidoctor.js Live Preview is a Google Chrome extension that will display any asciidoc file as html directly inside your browser.
This is one of the easiest ways to display asciidoc files.[Read More]