MD003 - Heading Style

Heading style should be consistent throughout the document.

Why This Rule Exists

Markdown supports multiple heading styles. Mixing styles within a document creates visual inconsistency and can confuse readers and tooling.

# Heading 1
## Heading 2
### Heading 3

#Heading 1#

##Heading 2##

###Heading 3###

Heading 1
=========

Heading 2
---------

# ATX Heading

Setext Heading
--------------

### Another ATX

# Main Title

## Section One

### Subsection

[MD003]
style = "atx"  # Options: "atx", "atx_closed", "setext", "consistent"

Value	Description
`atx`	Use `#` style headings
`atx_closed`	Use `# Heading #` style
`setext`	Use underline style (H1/H2 only)
`consistent`	Match the first heading's style