diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/README.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/README.txt	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,9 @@
+
+This directory is reserved for core module files. Custom or contributed modules
+should be placed in their own subdirectory of the sites/all/modules directory.
+For multisite installations, they can also be placed in a subdirectory under
+/sites/{sitename}/modules/, where {sitename} is the name of your site (e.g.,
+www.example.com). This will allow you to more easily update Drupal core files.
+
+For more details, see: http://drupal.org/node/176043
+