Make the blog and the handbook links in the navbar to open in another window (sef-global#1469)

Make the blog and the handbook links in the navbar to open in another window

Author: YoshithaRathnayake

assets/content/static/navbar.html

@@ -42,12 +42,12 @@
                         <div class="dropdown-menu dropdown-menu-xl">
                             <div class="dropdown-menu-inner">
 
-                                <a href="https://sefglobal.medium.com/" class="media d-flex align-items-center">
+                                <a href="https://sefglobal.medium.com/" target="_blank" class="media d-flex align-items-center">
                                     <div class="media-body ml-3">
                                         <h6 class="text-primary mb-md-1">Blog</h6>
                                     </div>
                                 </a>
-                                <a href="https://handbook.sefglobal.org" class="media d-flex align-items-center">
+                                <a href="https://handbook.sefglobal.org" target="_blank" class="media d-flex align-items-center">
                                     <div class="media-body ml-3">
                                         <h6 class="text-primary mb-md-1">Handbook</h6>
                                     </div>