docs: publishing README

README.md

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+# Editorial
+
+A reading-first theme built around a serif baseline grid and a generous measure. Light mode is warm book paper with dark ink. Dark mode drops to a low-glare charcoal with sepia type for late-night reading. Drop caps, running marginalia, and small-caps labels do the design work, so the writing leads and the page stays quiet.
+
+## Good for
+
+We built Editorial for people who write at length. Treat these as starting points, not limits. If the mood fits your brand, use it:
+
+- Personal essayists and columnists
+- Independent newsletters and subscriptions
+- Longform blogs and reported features
+- Author and portfolio sites
+
+## What you get
+
+- Four color presets, each with a tuned light mode and a tuned dark mode: Book Paper, Sepia Review, Legal Pad, and Nightdesk.
+- Playfair Display for headings and Source Serif 4 for body text, both bundled and ready. Fonts stay admin-controlled, so you can swap them from the typography settings.
+- Four persona blocks: a drop-cap essay opener, running marginalia side notes, a reading list, and a field-notes aside.
+- A demo site that installs when you activate the theme: a home page, an about page, a blog with three essays, and a contact page whose form emails your admins. It comes seeded as a newsletter called The Margin, by Frances Hale.
+- Every core block restyled to match, plus a themed login screen and a themed 404 page.
+
+## Install
+
+Install from the BlockNinja registry, then pick a preset and assign your fonts in the admin. Activate the demo content if you want a fully dressed starting point.