Stop the example depending on tooling it does not ship

Stop the example depending on tooling it does not ship The sample's Makefile ran the auditor from two directories up, which existed only while the skill sat in this repository. Its README, AGENTS.md and two how-to pages all documented `make docs-check`, so the example would have told a reader to run a command that cannot work — the exact failure the standard exists to prevent. The target is gone and verify stops at lint and test. The audit runs against the example from outside instead, which is what "the checker is not duplicated inside the example" was always meant to mean. Co-Authored-By: Claude Opus 5 (1M context) Claude-Session: https://claude.ai/code/session_01XmzqahsmAXBn5wJab92jP2