Typo fix

Author: mdecimus

README.md

@@ -18,7 +18,7 @@ Features:
   - ED25519-SHA256 (Edwards-Curve Digital Signature Algorithm), RSA-SHA256 and RSA-SHA1 chain verification.
   - ARC sealing.
 - **Sender Policy Framework (SPF)**:
-  - Policy evalution.
+  - Policy evaluation.
   - SPF failure reporting using the Abuse Reporting Format.
 - **Domain-based Message Authentication, Reporting, and Conformance (DMARC)**:
   - Policy evaluation.

src/lib.rs

@@ -28,7 +28,7 @@
 //!   - ED25519-SHA256 (Edwards-Curve Digital Signature Algorithm), RSA-SHA256 and RSA-SHA1 chain verification.
 //!   - ARC sealing.
 //! - **Sender Policy Framework (SPF)**:
-//!   - Policy evalution.
+//!   - Policy evaluation.
 //!   - SPF failure reporting using the Abuse Reporting Format.
 //! - **Domain-based Message Authentication, Reporting, and Conformance (DMARC)**:
 //!   - Policy evaluation.