Document that the script must be run from the root
Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/scripts/code_style.py b/scripts/code_style.py
index 463a349..e26d42e 100755
--- a/scripts/code_style.py
+++ b/scripts/code_style.py
@@ -1,5 +1,7 @@
#!/usr/bin/env python3
"""Check or fix the code style by running Uncrustify.
+
+This script must be run from the root of a Git work tree containing Mbed TLS.
"""
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0