Updates two Goose documentation links that pointed at old \�lock.github.io/goose\ deep links returning 404. The replacement \goose-docs.ai\ URLs resolve successfully.\n\nVerification:\n- \https://block.github.io/goose/docs/tutorials/building-mcp-apps/\\ returns 404\n- \https://block.github.io/goose/docs/guides/context-engineering/using-skills/\\ returns 404\n- Updated \goose-docs.ai\ links return 200\n\nAI assistance disclosure: I used AI assistance to identify and verify these broken links. I reviewed the final diff manually before submitting.