Add modification warning to templated files
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 435de1b..0654c8e 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -1,8 +1,10 @@
-# GRPC CocoaPods podspec
-# This file has been automatically generated from a template file. Please make modifications to
-# `templates/gRPC-Core.podspec.template` instead. This file can be regenerated from the template by
-# running `tools/buildgen/generate_projects.sh`.
+# This file has been automatically generated from a template file.
+# Please make modifications to `templates/gRPC-Core.podspec.template`
+# instead. This file can be regenerated from the template by running
+# `tools/buildgen/generate_projects.sh`.
+# gRPC Core CocoaPods podspec
+#
# Copyright 2015, Google Inc.
# All rights reserved.
#
