add comments to gloss Unicode codepoint hex

less/carousel.less

@@ -115,12 +115,12 @@
   // Non-glyphicon toggles
   .icon-prev {
     &:before {
-      content: '\2039';
+      content: '\2039';// SINGLE LEFT-POINTING ANGLE QUOTATION MARK (U+2039)
     }
   }
   .icon-next {
     &:before {
-      content: '\203a';
+      content: '\203a';// SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (U+203A)
     }
   }
 }