Say Community Specification License 1.0 for the spec

The specification moved off CC BY 4.0 on 2026-08-29 because CC BY grants no
patent rights. This repo was missed in that sweep and was caught by the new
retired-claims check in scripts/check-consistency.sh.

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

README.md

@@ -22,7 +22,7 @@ This is a Hugging Face Space mirror of the playground at [falsify.dev/playground
 
 ## What is PRML?
 
-**PRML** (Pre-Registered ML Manifest) is an open CC BY 4.0 specification for committing ML evaluation claims to a SHA-256 hash *before* the experiment runs. Nine YAML fields hashed over canonical bytes — the hash is the receipt that the threshold direction was fixed before the data arrived.
+**PRML** (Pre-Registered ML Manifest) is an open specification (Community Specification License 1.0) for committing ML evaluation claims to a SHA-256 hash *before* the experiment runs. Nine YAML fields hashed over canonical bytes — the hash is the receipt that the threshold direction was fixed before the data arrived.
 
 - **Spec:** [spec.falsify.dev/v0.1](https://spec.falsify.dev/v0.1)
 - **v0.2 RFC** (frozen 2026-05-22): [spec.falsify.dev/v0.2-rfc](https://spec.falsify.dev/v0.2-rfc)
@@ -50,7 +50,7 @@ PRML closes one specific gap: it makes post-hoc threshold tuning mechanically de
 ## License
 
 - **This Space (HTML/CSS/JS):** MIT
-- **PRML specification:** CC BY 4.0
+- **PRML specification:** Community Specification License 1.0
 - **Patent non-assertion grant** is published with the spec: implementations are free to use the manifest schema, canonical byte serialisation, and registry anchor protocol royalty-free, irrevocably, worldwide.
 
 ## Cite