docs: add Permacomputer Preamble to README License section

Mirrors the per-page footer that ships in the Sphinx docs (rst_epilog
in docs/_source/conf.py). Single source of canonical preamble text;
README and RTD pages stay aligned.

Whitepaper link already present — kept as the verbatim attribution.

README.md

@@ -376,4 +376,17 @@ The default suite never hits the network. The crawler suite is gated behind `mak
 
 License: AGPL-3.0-only · This algorithm, its implementation, & all associated code carry the GNU Affero General Public License v3.0 (only). You may use, modify, & distribute under those terms. No proprietary relicensing exists.
 
+### Permacomputer Preamble
+
+This is free software for the public good of a permacomputer hosted at [permacomputer.com](https://www.permacomputer.com), an always-on computer by the people, for the people. Durable, easy to repair, & distributed like tap water for machine learning intelligence.
+
+The permacomputer is community-owned infrastructure optimized around four values:
+
+- **TRUTH** — First principles, math & science, open source code freely distributed.
+- **FREEDOM** — Voluntary partnerships, freedom from tyranny & corporate control.
+- **HARMONY** — Minimal waste, self-renewing systems with diverse thriving connections.
+- **LOVE** — Be yourself without hurting others, cooperation through natural law.
+
+NO WARRANTY. Software is provided "AS IS" without warranty of any kind. Full text in [`LICENSE`](LICENSE).
+
 (Verbatim from the [Merkle Providence Reverse RAG whitepaper](https://unfirehose.com/merkle-providence-reverse-rag-whitepaper.pdf), April 2026.)