Update documentation index sidebar for 3.6.0 release.
diff --git a/Doc/tools/templates/indexsidebar.html b/Doc/tools/templates/indexsidebar.html
index 9e5c71f..76071e8 100644
--- a/Doc/tools/templates/indexsidebar.html
+++ b/Doc/tools/templates/indexsidebar.html
@@ -3,7 +3,7 @@
<h3>{% trans %}Docs for other versions{% endtrans %}</h3>
<ul>
<li><a href="https://docs.python.org/3.5/">{% trans %}Python 3.5 (stable){% endtrans %}</a></li>
- <li><a href="https://docs.python.org/3.6/">{% trans %}Python 3.6 (pre-release){% endtrans %}</a></li>
+ <li><a href="https://docs.python.org/3.6/">{% trans %}Python 3.6 (stable){% endtrans %}</a></li>
<li><a href="https://docs.python.org/3.7/">{% trans %}Python 3.7 (in development){% endtrans %}</a></li>
<li><a href="https://www.python.org/doc/versions/">{% trans %}Old versions{% endtrans %}</a></li>
</ul>