Add conference details page sample.

templates/user.html

@@ -20,7 +20,7 @@
 </ul>
 <br>
 <hr>
-<h4>{{ user_info.first_name }} user's data</h4>
+<h4>{{ user_info.first_name }}'s user data</h4>
 <hr>
 <div class="card-columns">
     <div class="card">
@@ -114,4 +114,4 @@
         </div>
     </div>
 </div>
-{% endblock %}
+{% endblock %}