Hello, World
This is the first post on 0-day.club, served as static HTML out of S3 behind CloudFront.
Adding an image (Markdown)
The simple way — Markdown image syntax, :

Adding an image (HTML)
When you need control over size or alignment, drop raw HTML right into the Markdown — it passes through untouched:

Both reference files in the images/ folder, which the build copies into the site automatically.