Use double slased comments

packages/components/panel/_panel.scss

@@ -2,24 +2,23 @@
 // COMPONENTS / #PANEL
 // ==========================================================================
 
-/**
- * Original code taken from GDS (Government Digital Service)
- * https://github.com/alphagov/govuk-frontend
- *
- * 1. Adds a transparent border for high contrast modes 
- * 2. This subtracts the transparent border width from the padding (because the border 
- *    visually adds to the total padding)
- * 3. This is an if-all-else-fails attempt to stop long words from overflowing the container
-      on very narrow viewports by forcing them to break and wrap instead. This
-      overflowing is more likely to happen when user increases text size on a mobile eg. using
-      iOS Safari text resize controls.
-
-      The overflowing is a particular problem with the panel component since it uses white
-      text: when the text overflows the container, it is invisible on the white (page)
-      background. When the text in our other components overflow, the user might have to scroll
-      horizontally to view it but the the text remains legible.
- * 4. Support IE (autoprefixer doesn't add this as it's not a prefix)
- */
+// Original code taken from GDS (Government Digital Service)
+// https://github.com/alphagov/govuk-frontend
+
+// 1. Adds a transparent border for high contrast modes 
+// 2. This subtracts the transparent border width from the padding (because the border 
+//     visually adds to the total padding)
+// 3. This is an if-all-else-fails attempt to stop long words from overflowing the container
+//     on very narrow viewports by forcing them to break and wrap instead. This
+//     overflowing is more likely to happen when user increases text size on a mobile eg. using
+//     iOS Safari text resize controls.
+
+//     The overflowing is a particular problem with the panel component since it uses white
+//     text: when the text overflows the container, it is invisible on the white (page)
+//     background. When the text in our other components overflow, the user might have to scroll
+//     horizontally to view it but the the text remains legible.
+// 4. Support IE (autoprefixer doesn't add this as it's not a prefix)
+
 
 $nhsuk-border-width-panel: nhsuk-spacing(1);