Update copyright year and wording in README

[A-x6]

Updated the copyright year from 2025 to 2026 and improved wording for clarity.

Contributor checklist

Administrative:

• I have read the README.
• I have read the CONTRIBUTING document and understand the caveats in the Pull Requests section.
• I have signed the Contributor Licence Agreement.

Commits and testing:

• My commits are rebased on the latest main branch.
• My commits are well-structured for review.
• My change has been thoroughly tested, and I am not aware of any regressions to existing features or behaviors.
• I have tested my contribution on these devices:

• iDevice A, iOS X.Y.Z
• iDevice B, iOS Z.Y

---

Description

I just updated the copyright year from last year to this year with a grammar change