diff --git a/README.adoc b/README.adoc
deleted file mode 100644
index 8e6f3a9..0000000
--- a/README.adoc
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: CC-BY-SA-4.0
-// Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath)
-
-= a2ml-showcase
-
-Showcase examples and templates for A2ML (AI Attestation Markup Language).
-
-image:https://api.securityscorecards.dev/projects/github.com/hyperpolymath/a2ml-showcase/badge[OpenSSF Scorecard,link=https://securityscorecards.dev/viewer/?uri=github.com/hyperpolymath/a2ml-showcase]
-
-== About
-
-This repository contains example A2ML documents, templates, and rendered output
-demonstrating the capabilities of the A2ML format. It is a content/showcase
-repository -- there is no executable code.
-
-== Structure
-
-* `content/` -- A2ML source documents
-* `output/` -- Rendered output
-* `template.html` -- HTML rendering template
-
-== License
-
-MPL-2.0. See link:LICENSE[LICENSE].
diff --git a/README.md b/README.md
index c9ea8c3..58d8a22 100644
--- a/README.md
+++ b/README.md
@@ -1,26 +1,27 @@
-[![Sponsor](https://img.shields.io/badge/Sponsor-%E2%9D%A4-pink?logo=github)](https://github.com/sponsors/hyperpolymath)
+<!--
+SPDX-License-Identifier: CC-BY-SA-4.0
+SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
+-->
 
-// SPDX-License-Identifier: CC-BY-SA-4.0
-// Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath)
+Showcase examples and templates for A2ML (AI Attestation Markup
+Language).
 
-= a2ml-showcase
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/hyperpolymath/a2ml-showcase/badge)](https://securityscorecards.dev/viewer/?uri=github.com/hyperpolymath/a2ml-showcase)
 
-Showcase examples and templates for A2ML (AI Attestation Markup Language).
+# About
 
-image:https://api.securityscorecards.dev/projects/github.com/hyperpolymath/a2ml-showcase/badge[OpenSSF Scorecard,link=https://securityscorecards.dev/viewer/?uri=github.com/hyperpolymath/a2ml-showcase]
+This repository contains example A2ML documents, templates, and rendered
+output demonstrating the capabilities of the A2ML format. It is a
+content/showcase repository — there is no executable code.
 
-== About
+# Structure
 
-This repository contains example A2ML documents, templates, and rendered output
-demonstrating the capabilities of the A2ML format. It is a content/showcase
-repository -- there is no executable code.
+- `content/` — A2ML source documents
 
-== Structure
+- `output/` — Rendered output
 
-* `content/` -- A2ML source documents
-* `output/` -- Rendered output
-* `template.html` -- HTML rendering template
+- `template.html` — HTML rendering template
 
-== License
+# License
 
-MPL-2.0. See link:LICENSE[LICENSE].
+MPL-2.0. See [LICENSE](LICENSE).