Fix ceefax https problem

Author: pengan1987

standalone/ceefax/ceefax.html

@@ -54,7 +54,7 @@
   </div>
   <script>
 
-    $.getJSON('http://andyzhk.azurewebsites.net/rss/index.php', function (data) {
+    $.getJSON('https://andyzhk.azurewebsites.net/rss/index.php', function (data) {
       betasignal_clusters(data.items);
     });