IVGCVSW-7024 Add missing license info for reuse lint

Signed-off-by: Jim Flynn <jim.flynn@arm.com>
Change-Id: I97dee6982e0a7be01c13e9e803c0997547a39ff1
diff --git a/python/pyarmnn/examples/image_classification/requirements.txt b/python/pyarmnn/examples/image_classification/requirements.txt
index 289a2b5..f411e2f 100644
--- a/python/pyarmnn/examples/image_classification/requirements.txt
+++ b/python/pyarmnn/examples/image_classification/requirements.txt
@@ -1,3 +1,7 @@
+#
+# Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
 requests>=2.23.0
 urllib3>=1.25.8
 Pillow>=6.1.0