docs: add OpenSSF Best Practices registration badge

Author: hyperpolymath

README.adoc

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: MPL-2.0
-// Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
-
+// Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 [WARNING]
 ====
+image:https://img.shields.io/badge/OpenSSF-Best_Practices-green?logo=openssourcesecurity[OpenSSF Best Practices,link="https://www.bestpractices.dev/en/projects/new?repo_url=https://github.com/hyperpolymath/ochrance-framework"]
+
 **ARCHIVED** -- This repo has been superseded by https://github.com/hyperpolymath/ochrance[ochrance]. All valuable content (Progressive.idr, Containerfile, flake.nix) has been merged there.
 ====
 
@@ -211,7 +212,9 @@ pattern: a dedicated repo implementing the `VerifiedSubsystem` interface defined
 
 == License
 
-MPL-2.0 (Palimpsest License)
+This project is licensed under the Mozilla Public License, v. 2.0. See the `LICENSE` file for details.
+
+SPDX-License-Identifier: MPL-2.0
 
 == Author