diff --git a/docs/source/_static/custom.css b/docs/source/_static/custom.css
new file mode 100644
index 00000000..c246b87a
--- /dev/null
+++ b/docs/source/_static/custom.css
@@ -0,0 +1,15 @@
+/* Footer layout: copyright on the left, GitHub link on the right in smaller font. */
+div[role="contentinfo"] {
+    display: flex;
+    justify-content: space-between;
+    align-items: baseline;
+    flex-wrap: wrap;
+}
+
+div[role="contentinfo"] p {
+    margin: 0;
+}
+
+.footer-github-link {
+    font-size: 0.85em;
+}
diff --git a/docs/source/_templates/footer.html b/docs/source/_templates/footer.html
new file mode 100644
index 00000000..5c172270
--- /dev/null
+++ b/docs/source/_templates/footer.html
@@ -0,0 +1,13 @@
+{% extends "!footer.html" %}
+{% block contentinfo %}
+  <p>
+  {%- if show_copyright %}
+    {%- trans copyright=copyright|e %}Copyright &#169; {{ copyright }}{% endtrans -%}
+  {%- endif %}
+  {%- if last_updated %}
+    {%- trans last_updated=last_updated|e %}: built {{ last_updated }}{% endtrans %}
+  {%- endif -%}
+  .
+  </p>
+  <a href="https://github.com/petercorke/pgraph-python" class="footer-github-link">GitHub</a>
+{% endblock %}
diff --git a/docs/source/conf.py b/docs/source/conf.py
index b258a3ba..1080d5d4 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -19,7 +19,7 @@
 # -- Project information -----------------------------------------------------
 
 project = "Simple graph functionality for Python"
-copyright = "2020, Peter Corke"
+copyright = "2020-present, Peter Corke"
 author = "Peter Corke"
 
 
@@ -80,10 +80,11 @@
 #
 html_theme = "sphinx_rtd_theme"
 html_show_sourcelink = True
-html_last_updated_fmt = "%d-%b-%Y"
+html_last_updated_fmt = "%Y-%m-%d"
 show_authors = True
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ["_static"]
+html_css_files = ["custom.css"]