Add donate button to navbar

templates/navbar.html

@@ -9,6 +9,7 @@
       <img alt="{{ 'The Tor Project' }}" src="{{ '/static/images/tor-logo.svg'|asseturl }}" >
       <span class="sr-only">{{ _("Tor Logo") }}</span>
     </a>
+    <a href="https://donate.torproject.org" title="{{ _("Donate") }}"><h5><span class="badge badge-warning p-2">{{ _("Donate Now") }}</span></h5></a>
     <label for="nav-toggle">
       <a class="btn btn-lg btn-primary navbar-toggler" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
         <span class="navbar-toggler-icon"></span>