docs: Fix README typo

[tharapalanivel]

Description of the change

Fix typo in README

Related issues or PRs

(Optional) List any documentation or testing added

(Optional) How to verify the contribution

Checklist for passing CI/CD:

• All commits are signed showing "Signed-off-by: Name <email@domain.com>" with git commit -signoff or equivalent
• PR title and commit messages adhere to Conventional Commits
• Contribution is formatted with tox -e fix
• Contribution passes linting with tox -e lint
• Contribution passes spellcheck with tox -e spellcheck
• Contribution passes all unit tests with tox -e unit

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