Update nav.html

Author: ShoroukAziz

nav.html

@@ -18,7 +18,7 @@
           <div class="collapse navbar-collapse" id="navbarSupportedContent">
             <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                 <li class="nav-item">
-                    <a class="nav-link" href="https://www.notion.so/shorouk/My-Planner-24d6bc3108584f48992b1347bff4380c"> <u>Planner</u></a>
+                    <a target="_blank" class="nav-link" href="https://www.notion.so/shorouk/My-Planner-24d6bc3108584f48992b1347bff4380c"> <u>Planner</u></a>
                   </li>
                   <li class="nav-item">
                     <a class="nav-link" href="https://www.notion.so/shorouk/Inbox-91a8ce98118147d384c511c67833bb6d">Inbox</a>