chore: fix minor issue in the comment

[yumeiyin]

What's new in this PR?

fix minor issue in the comment

Why?

What problem does this solve?
Why is this important?
What's the context?

[octane-security-app]

Summary by Octane

New Contracts

No new contracts were added in this PR.

Updated Contracts

• EIP712.sol: Corrected a spelling error in a comment; no changes to primary functionality or features of the smart contract.
• IERC2981.sol: Corrected a typo in the function return variable from "receiever" to "receiver" in the royaltyInfo interface.
• DiamondWritableInternal.sol: Fixed typographical errors in comments for clarity without altering functionality.
• ERC20PermitInternal.sol: Corrected a spelling error from "equavalent" to "equivalent" in the comment about EIP-712 hashStruct.

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🔗 Commit Hash: 31105f3

[octane-security-app]

Overview

Octane AI analysis has finished. No vulnerabilities were found. Cheers! 🎉🎉🎉

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🔗 Commit Hash: 31105f3