Use main python.org domain

Author: hugovk

Doc/tools/templates/layout.html

@@ -27,7 +27,7 @@
 
 {% block extrahead %}
     {% if builder == "html" %}
-      <script defer data-domain="docs.python.org" src="https://plausible.io/js/script.js"></script>
+      <script defer data-domain="python.org" src="https://plausible.io/js/script.js"></script>
     {% endif %}
     <link rel="canonical" href="https://docs.python.org/3/{{pagename}}.html" />
     {% if builder != "htmlhelp" %}