Fix typo which I noticed while I was studying

[RomanCherkasov]

Describe the changes

Checklist

• [X] I have read the CONTRIBUTING.md.
• [ ] I have included the relevant unit/golden tests.
• [ ] I have included the relevant samples.
• [X] I have updated the documentation accordingly.
• [ ] I have updated the CHANGELOG.md if necessary.

Fix documentation website only. Samples with a same code already.

[auto-maid[bot]]

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