ANsible playbook reference issue

[thirumoorthir]

Describe the bug
example mentioned as ansible playbook is wrong , it is not working

To Reproduce
Steps to reproduce the behavior:

1. Go to 'ansible playbook section'
2. copy paste it to an test machine and run it
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Environment(please complete the following information):

• Ansible version
• Deployment environment [e.g. aws, azure, on-prem]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.