Added missing SPDX info

TrevKnows · TrevKnows · commit 28d500b49b30 · 2023-02-23T13:56:50.000-05:00
diff --git a/Matrix_Portal_M4_Boxing_Interval_Timer/code.py b/Matrix_Portal_M4_Boxing_Interval_Timer/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2023 Trevor Beaton for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import displayio
 import terminalio
