slight simplification in the README example code

README.md

@@ -132,7 +132,7 @@ assert_eq!(hash1, hash2);
 let mut output = [0; 1000];
 let mut output_reader = hasher.finalize_xof();
 output_reader.fill(&mut output);
-assert_eq!(&output[..32], hash1.as_bytes());
+assert_eq!(hash1, output[..32]);
 
 // Print a hash as hex.
 println!("{}", hash1);