# Naming conventions

# File extension

Always use .md file extension.

remark-lint: file-extension

👍 Correct code for this rule:

ice.md
snow.md
frost.md

👎 Incorrect code for this rule:

ice.gfm
snow.mdk
frost.markdown

# File naming

Always prefer spinal-case (also named kebab-case or hyphen-separated) for file names.

remark-lint: no-file-name-mixed-case

👍 Correct code for this rule:

winter-season.md
ice-cold.md
snow-fall.md

👎 Incorrect code for this rule:

winterSeason.md
IceCold.md
snow fall.md
snow_fall.md