Initial scaffold: reader-magnet course stub for thistleandmoth.org

Mirrors michaelferrara-eec-courses. course.yml is active: false and
all copy is TODO until the real reader-magnet file/cover art are
ready and the thistleandmoth-list Listmonk list exists.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

courses/reader-magnet/day-0.md

@@ -0,0 +1,12 @@
+---
+subject: "TODO: subject line — here's your story"
+redirect_url: "https://downloads.thistleandmoth.org/reader-magnet/story.epub"
+---
+
+TODO: day-0 email copy goes here.
+
+[Get my story]({{.CTALink}})
+
+Talk soon,
+
+Thistle & Moth