[footer] Adds link to Quickstart

Author: jacomyal

src/layouts/Layout.astro

@@ -163,6 +163,7 @@ const appPages = [
           <h5 class="mb-3">Project</h5>
           <ul class="nav flex-column">
             <li class="nav-item mb-2"><a href="/about" class="nav-link p-0 text-body-secondary">About</a></li>
+            <li class="nav-item mb-2"><a href="/quickstart" class="nav-link p-0 text-body-secondary">Quickstart</a></li>
             <li class="nav-item mb-2"><a href="/faq" class="nav-link p-0 text-body-secondary">FAQ</a></li>
             <!--<li class="nav-item mb-2">-->
             <!--  <a href="/help" class="nav-link p-0 text-body-secondary">Get some help</a>-->