Add listings

Listing_10.25.html

@@ -0,0 +1,16 @@
+{% extends "layout.html" %}
+
+{% block content %}
+  <h1>About</h1>
+
+  <p>
+    This site is the final application in
+    <a href="https://www.learnenough.com/python-tutorial"><em>Learn Enough Python
+    to Be Dangerous</em></a>
+    by <a href="https://www.michaelhartl.com/">Michael Hartl</a>,
+    a tutorial introduction to the
+    <a href="https://www.python.org/">Python programming language</a> that
+    is part of
+    <a href="https://www.learnenough.com/">LearnEnough.com</a>.
+  </p>
+{% endblock %}