Headings

Markdown supports two heading styles:

ATX style (most common):

# H1
## H2
### H3
###### H6 (max)

Setext style (only for H1 and H2):

H1 underlined
=============

H2 underlined
-------------

The number of # chars determines the level. Per CommonMark spec, # heading requires a space after the hashes — #heading is NOT a heading.

Optional trailing hashes are allowed: ## Section ## produces <h2>Section</h2> (the trailing hashes are ignored).

To compile: