MeshViewer html tweak

test/meshviewer_index.html

@@ -111,7 +111,7 @@ progress::-webkit-progress-value
         code_helper_var = document.getElementById('DIV_var_usage');
         code_helper_alpha = document.getElementById('DIV_alphabet');
 
-        code_helper_alpha.innerHTML = ' [';
+        code_helper_alpha.innerHTML = ' Table of content [';
         for (var a = 'a'.charCodeAt(0); a <= 'z'.charCodeAt(0); a++)
         {
             var stop = false;