Update README.md

20px is too damn big.

Migrate legacy blog post disclaimer.

I missed my alias.

(pubDate -> date) and some formatting.

Axe the default posts.

Ironic how the "semantics" post had the wrong date format.

Ignore .astro as recommended.

Use content collections instead.

Axe another vestige.

And the package.json too.

Axe the old lockfile to prevent useless PRs.

Let's do this again one last time.

Build Sanity into the public directory.

Add @sanity/cli to studio's devDeps.