List all the places with instructions to generate those files

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/scripts/check-generated-files.sh b/tests/scripts/check-generated-files.sh
index 281f1ad..946794c 100755
--- a/tests/scripts/check-generated-files.sh
+++ b/tests/scripts/check-generated-files.sh
@@ -121,6 +121,11 @@
 # the format must be "check SCRIPT FILENAME...". For other source files,
 # any shell syntax is permitted (including e.g. command substitution).
 
+# Note: Instructions to generate those files are replicated in:
+#   - **/Makefile (to (re)build them with make)
+#   - **/CMakeLists.txt (to (re)build them with cmake)
+#   - scripts/make_generated_files.bat (to generate them under Windows)
+
 check scripts/generate_errors.pl library/error.c
 check scripts/generate_query_config.pl programs/test/query_config.c
 check scripts/generate_driver_wrappers.py library/psa_crypto_driver_wrappers.c