Iframe example should load assets from a consistent place

We were mixing up local assets with CDN assets and that was causing issues.
This loads everything from local, but adds some better comments to show
how to load them from CDN instead.

dist/examples/iframe/child.html

@@ -20,7 +20,8 @@
 -->
     <meta charset='utf-8'>
     <title>Rapid</title>
-    <link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.css'>
+    <link rel='stylesheet' href='../../rapid.css'>   <!-- local development -->
+    <!-- <link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.css'> -->   <!-- CDN -->
     <link rel='icon' type='image/svg' href='https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/img/rapid_favicon.svg'>
 
     <meta name='viewport' content='width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no'/>
@@ -50,10 +51,9 @@
       newScript.onload = checkScript;
       newScript.onerror = checkScript;
 
-// at some point, replace this with the cdn link
-newScript.src = '../../rapid.js';
-//      newScript.src = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.js';         // debug
-//      newScript.src = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.min.js';   // production
+      newScript.src = '../../rapid.js';                                                          // local development
+//      newScript.src = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.js';       // CDN debug
+//      newScript.src = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/rapid.min.js';   // CDN production
 
       document.getElementsByTagName('head')[0].appendChild(newScript);
 
@@ -65,7 +65,8 @@
         } else {
           const context = new Rapid.Context();
           context.containerNode = container;
-          context.assetPath = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/';
+          context.assetPath = '../../';                                                       // local development
+          // context.assetPath = 'https://cdn.jsdelivr.net/npm/@rapideditor/rapid@2/dist/';   // CDN
           context.buildID = '';
           context.buildSHA = '';
           context.buildDate = '';