urbansound: Link back to repo

Author: jonnor

microesc/urbansound8k.py

@@ -6,6 +6,8 @@
 Copyright: Jon Nordby <[email protected]>
 License: MIT https://opensource.org/licenses/MIT
 
+Originally developed as part of https://github.com/jonnor/ESC-CNN-microcontroller
+
 The UrbanSound8K dataset is under the Creative Commons Attribution Noncommercial License (by-nc), version 3.
 """