Add comment in docs JS files.

assets/js/src/ie-emulation-modes-warning.js

 // NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
-// IT'S JUST JUNK FOR OUR DOCS!
+// IT'S ALL JUST JUNK FOR OUR DOCS!
 // ++++++++++++++++++++++++++++++++++++++++++
 
 // Intended to prevent false-positive bug reports about Bootstrap not working properly in old versions of IE due to folks testing using IE's unreliable emulation modes.

assets/js/src/pwa.js

+// NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
+// IT'S ALL JUST JUNK FOR OUR DOCS!
+// ++++++++++++++++++++++++++++++++++++++++++
+
 /* eslint no-console:off */
 
 (function () {

assets/js/src/search.js

+// NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
+// IT'S ALL JUST JUNK FOR OUR DOCS!
+// ++++++++++++++++++++++++++++++++++++++++++
+
 (function () {
   'use strict'