Refactor comments

Author: wooorm

index.js

@@ -2,11 +2,10 @@
 
 module.exports = interElementWhiteSpace
 
-/* HTML white-space expression.
- * See <https://html.spec.whatwg.org/#space-character>. */
+// HTML white-space expression.
+// See <https://html.spec.whatwg.org/#space-character>.
 var re = /[ \t\n\f\r]/g
 
-/* Check if `node` is a inter-element white-space. */
 function interElementWhiteSpace(node) {
   var value