Add parser for node text with support for headers

templates/node.html

@@ -6,9 +6,7 @@
     <section>
         <h1>{{ title }}</h1>
         <code style="display: inline;">ID: {{ id }}</code>
-        {% for line in text | split(pat="\n") %}
-        {% if line %} <p>{{ line }}</p> {% endif %}
-        {% endfor %}
+        {{ text | safe }}
     </section>
     {% if connections or incoming %}
     <aside>