added link back to class next to link to allen school

_includes/navigation.html

@@ -21,8 +21,11 @@
   <div class="container">
     <a class="navbar-brand js-scroll-trigg"
        href="https://www.cs.washington.edu" aria-label="{{site.data.navigation.nav_list_title}}">
-       <img src="{{site.baseurl}}/assets/img/Allen-School-white-RGB-sm.png" alt="Allen School Logo" align=left style="max-width: 100%; height: auto;">
-	  </a>
+      <img src="{{site.baseurl}}/assets/img/Allen-School-white-RGB-sm.png" alt="Allen School Logo" align=left style="max-width: 100%; height: auto;">
+  <a class="navbar-brand js-scroll-trigg"
+       href="{{site.baseurl}}/" aria-label="{{site.data.navigation.nav_list_title}}">
+       <img src="{{site.baseurl}}/assets/img/favicon.png" alt="Make4all/class Logo" align=left style="max-width: 10%; height: auto;"> 
+       </a>
   </div>
   <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
     <span class="navbar-toggler-icon"></span>