mhgu: fix recommends self link

web/mhgu/recommends.html

@@ -46,7 +46,7 @@
               display_item(normalized_name);
               console.log("replaceState: " + normalized_name);
               window.history.replaceState({ "item_name": normalized_name }, "",
-                                          "/recommends.html?item="
+                                          "recommends.html?item="
                                           + encoded_name );
           }
           $(window).on("popstate", function(e) {
@@ -72,7 +72,7 @@
           display_item(normalized_name);
           console.log("pushState: " + normalized_name);
           window.history.pushState({ "item_name": normalized_name }, "",
-                                   "/recommends.html?item=" + encoded_name );
+                                   "recommends.html?item=" + encoded_name );
       }
 
       function display_item(normalized_name) {