Adding favico

client/html/index.html

@@ -10,7 +10,7 @@
   <meta name="apple-mobile-web-app-capable" content="yes">
   <link href="https://fonts.googleapis.com/css?family=Saira+Condensed:300,600|Saira:300,600&amp;subset=latin-ext,vietnamese" rel="stylesheet">
   <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.13/css/all.css" integrity="sha384-DNOHZ68U8hZfKXOrtjWvjxusGo9WQnrNx2sqG0tfsghAvtVlRW3tvkXWZh58N9jp" crossorigin="anonymous">
-  <link rel="shortcut icon" type="image/png/ico" href="/favicon.ico" />
+  <link rel="shortcut icon" type="image/png/ico" href="/html/favicon.ico" />
   <script src="https://unpkg.com/apollo-client-browser@1.7.0"></script>
 
   <script type="text/javascript" src="https://charts-dev.superalgos.org/Scripts/require.js"></script>