Custom template for docs, linking to datasette.io

docs/_templates/layout.html

@@ -0,0 +1,23 @@
+{%- extends "!layout.html" %}
+
+{% block sidebartitle %}
+
+<a href="https://datasette.io/">
+  <img src="{{ pathto('_static/' + logo, 1) }}" class="logo" alt="{{ _('Logo') }}"/>
+</a>
+
+{% if theme_display_version %}
+  {%- set nav_version = version %}
+  {% if READTHEDOCS and current_version %}
+    {%- set nav_version = current_version %}
+  {% endif %}
+  {% if nav_version %}
+    <div class="version">
+      {{ nav_version }}
+    </div>
+  {% endif %}
+{% endif %}
+
+{% include "searchbox.html" %}
+
+{% endblock %}