More writing soon

This is a placeholder note showing what a Writings card looks like once the Markdown pipeline is wired up.

To add a real piece: drop a new .md file into content/writings/, with the same frontmatter block (title, summary, date) at the top followed by the piece itself in plain Markdown — headings, lists, links, and inline math like $\LaTeX$ all work. A new card and page appear automatically the next time the site builds; nothing else needs to change.

You can delete this file once the first real piece is in place.