In expect module documentation add no_log to password change example (#44436)

* Update expect.py

Recommend not showing passwords in the logs

+label: docsite_pr

* Fix unicode quotes

lib/ansible/modules/commands/expect.py

@@ -77,6 +77,8 @@ EXAMPLES = r'''
     command: passwd username
     responses:
       (?i)password: "MySekretPa$$word"
+  # you don't want to show passwords in your logs
+  no_log: true
 
 - name: Generic question with multiple different responses
   expect: