Demos update cdn.polyfill.io to cdnjs.cloudflare.com/polyfill

Author: benwinding

demos/javascript/public/index.html

@@ -36,7 +36,7 @@
     </div>
 
     <script
-      src="https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise"
+      src="https://cdnjs.cloudflare.com/polyfill/v2/polyfill.min.js?features=Promise"
       crossorigin="anonymous"
     ></script>
     <script src="./index.min.js"></script>

demos/script-tags/demo-quill-1.x.html

@@ -37,7 +37,7 @@
     </div>
 
     <script
-      src="https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise"
+      src="https://cdnjs.cloudflare.com/polyfill/v2/polyfill.min.js?features=Promise"
       crossorigin="anonymous"
     ></script>
     <!--  DEVELOMENT  <script src="../../../dist/quill.htmlEditButton.min.js"></script> -->

demos/script-tags/demo-quill-2.x.html

@@ -47,7 +47,7 @@ <h3>Wow a table!</h3>
     </div>
 
     <script
-      src="https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise"
+      src="https://cdnjs.cloudflare.com/polyfill/v2/polyfill.min.js?features=Promise"
       crossorigin="anonymous"
     ></script>
     <!--  DEVELOMENT  <script src="../../../dist/quill.htmlEditButton.min.js"></script> -->

demos/typescript/public/index.html

@@ -36,7 +36,7 @@
     </div>
 
     <script
-      src="https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise"
+      src="https://cdnjs.cloudflare.com/polyfill/v2/polyfill.min.js?features=Promise"
       crossorigin="anonymous"
     ></script>
     <script src="./index.min.js"></script>