Add note to docs SCSS explaining where all the Sass went

diff --git a/docs/assets/scss/docs.scss b/docs/assets/scss/docs.scss
index c8ee59d32eb4382083229f4b5cf12894a55ef0c2..43dfd74bfd0ed309dfb7fac040f748eb79a42d2a 100644 (file)
--- a/docs/assets/scss/docs.scss
+++ b/docs/assets/scss/docs.scss
@@ -1,3 +1,12 @@
+// The CSS for the Foundation docs is stored in an external codebase:
+// https://github.com/zurb/foundation-docs
+//
+// You can test Sass changes locally by running these commands:
+//   git clone https://github.com/zurb/foundation-docs
+//   npm link ./foundation-docs
+//
+// Feel free to submit pull requests to foundation-docs like you would Foundation itself!
+
 @import 'foundation';
 @import 'motion-ui';