Add active class to second navigation element

As discussed here: realpython/tutorial-drafts#304 (comment)

Author: martin-martin

rp-portfolio/personal_portfolio/templates/base.html

@@ -12,7 +12,7 @@
             <li class="nav-item active">
               <a class="nav-link" href="{% url 'project_index' %}">Home</a>
             </li>
-            <li class="nav-item">
+            <li class="nav-item active">
               <a class="nav-link" href="{% url 'blog_index' %}">Blog</a>
             </li>
           </ul>