can write and read notes

templates/note.html.twig

@@ -0,0 +1,9 @@
+{% extends 'base.html.twig' %}
+
+{% block content %}
+    <section>
+        <h1>Note</h1>
+        <time>{{ note.getPublishedDate().format('c') }}
+        <p>{{ note.content }}</p>
+    </section>
+{% endblock %}