The CommonMark specification has laid a stable ground for Markdown. The following pages briefly recap the syntax for its elements, show their standard layout and alternative options.
Main page structure
Essential building blocks of text
A break inside a paragraph
Accentuate pieces of text
Text segments from other sources
List marked with a bullet
List marked with ordered natural numbers
Editor or command line content
Strong separation of page segments
All types of references to a URL
Photos, Graphics etc.
How to write special characters