Clarify overrides

Author: matijs

.stylelintrc.js

@@ -1,10 +1,15 @@
 module.exports = {
     extends: '@ultimaker/stylelint-config/scss',
     rules: {
+        // To be removed once @extends are gone
         'at-rule-blacklist': null,
+        // To be removed once line-heights are unitless
         'declaration-property-unit-blacklist': null,
+        // Only here to supress nesting-depth warnings
         'max-nesting-depth': null,
+        // see: https://stylelint.io/user-guide/rules/no-descending-specificity
         'no-descending-specificity': null,
+        // These can be removed once AutoPrefixer in used in consuming projects
         'property-no-vendor-prefix': null,
         'value-no-vendor-prefix': null,
     },