--- a/playbook-example.yml	Thu Dec 08 00:22:03 2016 +0800
+++ b/playbook-example.yml	Thu May 04 13:10:26 2017 +0800
@@ -54,3 +54,8 @@
         name: nginx
         state: restarted
 ...
+# NOTE: how to test that it works correctly (also see the note about DNS):
+# curl -I http://hg.mydomain/
+#   will check hgweb pages, look for "200 Script output follows" status
+# curl -I http://hg.mydomain/static/mercurial.js
+#   will check serving static files via Nginx, look for "200 OK" status