adding SPDX

adding SPDX and adding a post-it reminder until i get in the habit :)

Author: BlitzCityDIY

Party_Parrot_Zoetrope/code.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
 from adafruit_crickit import crickit
 
 #  crickit setup