Update ansible.cfg

ansible.cfg

@@ -6,6 +6,7 @@ host_key_checking = False
 timeout = 60
 deprecation_warnings = False
 display_skipped_hosts = False
+localhost_warning = False
 
 [ssh_connection]
 pipelining = True
@@ -15,4 +16,5 @@ retries = 3
 connect_timeout = 60
 command_timeout = 30
 
-#https://github.com/ansible/ansible/blob/stable-2.9/examples/ansible.cfg
+# https://github.com/ansible/ansible/blob/stable-2.11/examples/ansible.cfg
+# https://docs.ansible.com/ansible/latest/reference_appendices/config.html