Share a Marp deck with linkdown

Marp turns a Markdown file into slides. linkdown turns the built HTML bundle into a URL anyone can open.

1. Install Marp

   npm install --save-dev @marp-team/marp-cli

   Use the Marp CLI (https://github.com/marp-team/marp-cli) or the VS Code extension.
2. Author your deck

   npx marp deck.md --html --output dist/

   Markdown front matter + slide separators (`---`).
3. Zip the output and share

   zip -r out.zip dist/ && linkdown create .

   The CLI expects a single .zip containing the index.html at the root.