Add Apache attribution to site footer

Author: alamb

docs/source/_templates/layout.html

@@ -3,3 +3,24 @@
 {# Silence the navbar #}
 {% block docs_navbar %}
 {% endblock %}
+
+<!--
+    Custom footer
+-->
+{% block footer %}
+<!-- Based on pydata_sphinx_theme/footer.html -->
+<footer class="footer mt-5 mt-md-0">
+  <div class="container">
+    {% for footer_item in theme_footer_items %}
+    <div class="footer-item">
+      {% include footer_item %}
+    </div>
+    {% endfor %}
+    <div class="footer-item">
+      <p>Apache Arrow DataFusion, Arrow DataFusion, Apache, the Apache feather logo, and the Apache Arrow DataFusion project logo</p>
+      <p>are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p>
+    </div>
+  </div>
+</footer>
+
+{% endblock %}

docs/source/conf.py

@@ -33,9 +33,9 @@
 
 # -- Project information -----------------------------------------------------
 
-project = 'Arrow DataFusion'
-copyright = '2023, Apache Software Foundation'
-author = 'Arrow DataFusion Authors'
+project = 'Apache Arrow DataFusion'
+copyright = '2019-2024, Apache Software Foundation'
+author = 'Apache Software Foundation'
 
 
 # -- General configuration ---------------------------------------------------