Move some structure to child files, allows more flexibility

templates/add_quote.html

@@ -1,5 +1,6 @@
 {% extends "layout.html" %}
 {% block body %}
+<div class="container">
 <h1> Add new Quote </h1>
 <form method="post">
   <div class="form-group">
@@ -24,4 +25,5 @@
   </div>
 
 </form>
+</div>
 {% endblock %}