fix: add host in docs

Author: frank

docs/index.html

@@ -155,9 +155,11 @@ <h2 class="padding:5px_0px">Demo</h2>
         <script>
             var config = {
                 apiKey: 'c2b08663-06e3-440c-ef6f-13978b42883a',
-                organization_Id: '5de0387b12e200ea63204d6c'
+                organization_Id: '5de0387b12e200ea63204d6c',
+                host: 'wss://server.cocreate.app:8088'
             }
         </script>
+
 
         <!--CoCreateJS-->
         <script src="https://cdn.cocreate.app/latest/CoCreate.min.js" ></script>