Overcommunicate with comments

app/assets/stylesheets/application.scss

@@ -37,7 +37,12 @@
 @import "application_ee";
 
 // CSS util classes
+/**
+  These are deprecated in favor of the Gitlab UI utilities imported below.
+  Please check https://unpkg.com/browse/@gitlab/ui/src/scss/utilities.scss
+  to see the available utility classes.
+**/
 @import "utilities";
 
 // Gitlab UI util classes
-@import '@gitlab/ui/src/scss/utilities';
+@import "@gitlab/ui/src/scss/utilities";

app/assets/stylesheets/utilities.scss

+/**
+  Please note: These are deprecated in favor of the Gitlab UI utility classes.
+  Check https://unpkg.com/browse/@gitlab/ui/src/scss/utilities.scss
+  to see the available utility classes. If you cannot find the class you need,
+  consider adding it to Gitlab UI before adding it here.
+**/
+
 @each $variant, $range in $color-ranges {
   @each $suffix, $color in $range {
     #{'.bg-#{$variant}-#{$suffix}'} {