add implementation draft pending for api update

src/Entity/Browser/Menu/Help/Issue.php

@@ -40,7 +40,11 @@ class Issue
             'activate',
             function()
             {
-                // @TODO self::URL
+                /* @TODO pending for PR #153
+                Gtk::show_uri_on_window(
+                    $this->help->menu->browser->gtk,
+                    self::URL
+                ); */
             }
         );
     }