Add note about gs://demomaker for video test files

Author: Rebecca Taylor

video/cloud-client/analyze/analyze_test.py

@@ -22,6 +22,9 @@
 
 
 BUCKET = os.environ['CLOUD_STORAGE_BUCKET']
+
+
+# Videos used for these tests can be found in the gs://demomaker/ public bucket
 LABELS_FILE_PATH = '/video/cat.mp4'
 EXPLICIT_CONTENT_FILE_PATH = '/video/cat.mp4'
 SHOTS_FILE_PATH = '/video/gbikes_dinosaur.mp4'