docs: update README license section to SAY NO TO SUICIDE PUBLIC LICENSE

Agent-Logs-Url: https://github.com/unbug/tday/sessions/a86cbb3b-ee11-4a4a-890f-2c57a5b3e12c

Co-authored-by: unbug <799578+unbug@users.noreply.github.com>

Author: Copilot

README.md

@@ -809,6 +809,6 @@ The [`CoWorkers.md`](./CoWorkers.md) file in this repository is the community-cu
 
 ## 13. License
 
-MIT License
+[SAY NO TO SUICIDE PUBLIC LICENSE](https://github.com/unbug/snts)
 
 `tday-nativecore` (the Computer Use Rust binary) is licensed under the **Business Source License 1.1** — see [`crates/tday-nativecore/LICENSE`](crates/tday-nativecore/LICENSE).