fix readme typo

[nmcardoso]

• [ ] The pull request is complete according to the Definition of Done

  • [ ] Acceptance criteria in the ticket have been met
  • [ ] Automated tests are written according to the test plan
  • [ ] The documentation is up-to-date
  • [ ] Deployment automation includes newly introduced environment variables and credentials are added to the credentials.fact file of all servers
• [ ] The pull request has a descriptive title that describes what has changed, and provides enough context for the changelog
• [ ] When applicable, the pull request title starts with the issue number

[untra]

Good eyes. Thanks for the contribution!