Add copyright notice.

diff --git a/cli.js b/cli.js
index 0c1fc8fcae21438d830a102f15c4dce0ccb1d103..fee387d079e3b0def6ca56e36acc96e207a976b8 100755 (executable)
--- a/cli.js
+++ b/cli.js
@@ -1,3 +1,6 @@
+//! SPDX-FileCopyrightText: 2025 Chris Duncan <chris@zoso.dev>
+//! SPDX-License-Identifier: GPL-3.0-or-later
+
 import * as puppeteer from 'puppeteer'
 import * as fs from 'node:fs/promises'